Home / 20,360.04-30,540.06-9,964.50

Finding the Fourth Proportional to 20,360.04, 30,540.06 and 9,964.50

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Solution

The fourth proportional to 20,360.04, 30,540.06 and 9,964.50 is: 14,946.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,360.04 : 30,540.06 = 9,964.50 : x
  2. Step 2: Convert to fraction form
    20,360.04/30,540.06 = 9,964.50/x
  3. Step 3: Cross multiply
    20,360.04x = 30,540.06 × 9,964.50
  4. Step 4: Simplify right side
    20,360.04x = 304,316,427.87
  5. Step 5: Solve for x
    x = 304,316,427.87/20,360.04
  6. Step 6: Final answer
    x = 14,946.75

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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 (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.