Home / 35,695.10-53,542.65-20,920.70

Finding the Fourth Proportional to 35,695.10, 53,542.65 and 20,920.70

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Solution

The fourth proportional to 35,695.10, 53,542.65 and 20,920.70 is: 31,381.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,695.10 : 53,542.65 = 20,920.70 : x
  2. Step 2: Convert to fraction form
    35,695.10/53,542.65 = 20,920.70/x
  3. Step 3: Cross multiply
    35,695.10x = 53,542.65 × 20,920.70
  4. Step 4: Simplify right side
    35,695.10x = 1,120,149,717.86
  5. Step 5: Solve for x
    x = 1,120,149,717.86/35,695.10
  6. Step 6: Final answer
    x = 31,381.05

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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.