Home / 42,714.24-64,060.32-13,125.12

Finding the Fourth Proportional to 42,714.24, 64,060.32 and 13,125.12

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Solution

The fourth proportional to 42,714.24, 64,060.32 and 13,125.12 is: 19,684.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,714.24 : 64,060.32 = 13,125.12 : x
  2. Step 2: Convert to fraction form
    42,714.24/64,060.32 = 13,125.12/x
  3. Step 3: Cross multiply
    42,714.24x = 64,060.32 × 13,125.12
  4. Step 4: Simplify right side
    42,714.24x = 840,799,387.24
  5. Step 5: Solve for x
    x = 840,799,387.24/42,714.24
  6. Step 6: Final answer
    x = 19,684.29

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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.