Home / 35,691.57-49,255.02-20,581.70

Finding the Fourth Proportional to 35,691.57, 49,255.02 and 20,581.70

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Solution

The fourth proportional to 35,691.57, 49,255.02 and 20,581.70 is: 28,403.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,691.57 : 49,255.02 = 20,581.70 : x
  2. Step 2: Convert to fraction form
    35,691.57/49,255.02 = 20,581.70/x
  3. Step 3: Cross multiply
    35,691.57x = 49,255.02 × 20,581.70
  4. Step 4: Simplify right side
    35,691.57x = 1,013,751,798.86
  5. Step 5: Solve for x
    x = 1,013,751,798.86/35,691.57
  6. Step 6: Final answer
    x = 28,403.12

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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.