Home / 21,439.12-32,169.65-10,207.17

Finding the Fourth Proportional to 21,439.12, 32,169.65 and 10,207.17

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Solution

The fourth proportional to 21,439.12, 32,169.65 and 10,207.17 is: 15,315.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,439.12 : 32,169.65 = 10,207.17 : x
  2. Step 2: Convert to fraction form
    21,439.12/32,169.65 = 10,207.17/x
  3. Step 3: Cross multiply
    21,439.12x = 32,169.65 × 10,207.17
  4. Step 4: Simplify right side
    21,439.12x = 328,361,086.39
  5. Step 5: Solve for x
    x = 328,361,086.39/21,439.12
  6. Step 6: Final answer
    x = 15,315.98

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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.