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Finding the Fourth Proportional to 21,502.32, 29,675.16 and 12,554.16

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Solution

The fourth proportional to 21,502.32, 29,675.16 and 12,554.16 is: 17,325.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,502.32 : 29,675.16 = 12,554.16 : x
  2. Step 2: Convert to fraction form
    21,502.32/29,675.16 = 12,554.16/x
  3. Step 3: Cross multiply
    21,502.32x = 29,675.16 × 12,554.16
  4. Step 4: Simplify right side
    21,502.32x = 372,546,706.67
  5. Step 5: Solve for x
    x = 372,546,706.67/21,502.32
  6. Step 6: Final answer
    x = 17,325.88

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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.