Home / 35,543.68-53,299.20-20,757.12

Finding the Fourth Proportional to 35,543.68, 53,299.20 and 20,757.12

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Solution

The fourth proportional to 35,543.68, 53,299.20 and 20,757.12 is: 31,126.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,543.68 : 53,299.20 = 20,757.12 : x
  2. Step 2: Convert to fraction form
    35,543.68/53,299.20 = 20,757.12/x
  3. Step 3: Cross multiply
    35,543.68x = 53,299.20 × 20,757.12
  4. Step 4: Simplify right side
    35,543.68x = 1,106,337,890.30
  5. Step 5: Solve for x
    x = 1,106,337,890.30/35,543.68
  6. Step 6: Final answer
    x = 31,126.15

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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.