Home / 22,148.51-30,557.39-12,587.45

Finding the Fourth Proportional to 22,148.51, 30,557.39 and 12,587.45

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Solution

The fourth proportional to 22,148.51, 30,557.39 and 12,587.45 is: 17,366.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,148.51 : 30,557.39 = 12,587.45 : x
  2. Step 2: Convert to fraction form
    22,148.51/30,557.39 = 12,587.45/x
  3. Step 3: Cross multiply
    22,148.51x = 30,557.39 × 12,587.45
  4. Step 4: Simplify right side
    22,148.51x = 384,639,403.03
  5. Step 5: Solve for x
    x = 384,639,403.03/22,148.51
  6. Step 6: Final answer
    x = 17,366.38

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Double scale
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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.