Home / 22,143.04-30,557.10-12,071.32

Finding the Fourth Proportional to 22,143.04, 30,557.10 and 12,071.32

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Solution

The fourth proportional to 22,143.04, 30,557.10 and 12,071.32 is: 16,658.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,143.04 : 30,557.10 = 12,071.32 : x
  2. Step 2: Convert to fraction form
    22,143.04/30,557.10 = 12,071.32/x
  3. Step 3: Cross multiply
    22,143.04x = 30,557.10 × 12,071.32
  4. Step 4: Simplify right side
    22,143.04x = 368,864,532.37
  5. Step 5: Solve for x
    x = 368,864,532.37/22,143.04
  6. Step 6: Final answer
    x = 16,658.26

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Half scale
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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.