Home / 38,249.24-52,781.06-21,479

Finding the Fourth Proportional to 38,249.24, 52,781.06 and 21,479

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Solution

The fourth proportional to 38,249.24, 52,781.06 and 21,479 is: 29,639.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,249.24 : 52,781.06 = 21,479 : x
  2. Step 2: Convert to fraction form
    38,249.24/52,781.06 = 21,479/x
  3. Step 3: Cross multiply
    38,249.24x = 52,781.06 × 21,479
  4. Step 4: Simplify right side
    38,249.24x = 1,133,684,387.74
  5. Step 5: Solve for x
    x = 1,133,684,387.74/38,249.24
  6. Step 6: Final answer
    x = 29,639.40

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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.