Home / 20,344.13-30,516.20-9,812.19

Finding the Fourth Proportional to 20,344.13, 30,516.20 and 9,812.19

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Solution

The fourth proportional to 20,344.13, 30,516.20 and 9,812.19 is: 14,718.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,344.13 : 30,516.20 = 9,812.19 : x
  2. Step 2: Convert to fraction form
    20,344.13/30,516.20 = 9,812.19/x
  3. Step 3: Cross multiply
    20,344.13x = 30,516.20 × 9,812.19
  4. Step 4: Simplify right side
    20,344.13x = 299,430,703.42
  5. Step 5: Solve for x
    x = 299,430,703.42/20,344.13
  6. Step 6: Final answer
    x = 14,718.29

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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.