Home / 21,063.20-29,071.04-12,565.92

Finding the Fourth Proportional to 21,063.20, 29,071.04 and 12,565.92

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Solution

The fourth proportional to 21,063.20, 29,071.04 and 12,565.92 is: 17,343.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,063.20 : 29,071.04 = 12,565.92 : x
  2. Step 2: Convert to fraction form
    21,063.20/29,071.04 = 12,565.92/x
  3. Step 3: Cross multiply
    21,063.20x = 29,071.04 × 12,565.92
  4. Step 4: Simplify right side
    21,063.20x = 365,304,362.96
  5. Step 5: Solve for x
    x = 365,304,362.96/21,063.20
  6. Step 6: Final answer
    x = 17,343.25

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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.