Home / 35,854.32-53,781.68-12,480.72

Finding the Fourth Proportional to 35,854.32, 53,781.68 and 12,480.72

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Solution

The fourth proportional to 35,854.32, 53,781.68 and 12,480.72 is: 18,721.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,854.32 : 53,781.68 = 12,480.72 : x
  2. Step 2: Convert to fraction form
    35,854.32/53,781.68 = 12,480.72/x
  3. Step 3: Cross multiply
    35,854.32x = 53,781.68 × 12,480.72
  4. Step 4: Simplify right side
    35,854.32x = 671,234,089.21
  5. Step 5: Solve for x
    x = 671,234,089.21/35,854.32
  6. Step 6: Final answer
    x = 18,721.15

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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.