Home / 21,191.79-29,233.63-12,572.96

Finding the Fourth Proportional to 21,191.79, 29,233.63 and 12,572.96

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Solution

The fourth proportional to 21,191.79, 29,233.63 and 12,572.96 is: 17,344.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,191.79 : 29,233.63 = 12,572.96 : x
  2. Step 2: Convert to fraction form
    21,191.79/29,233.63 = 12,572.96/x
  3. Step 3: Cross multiply
    21,191.79x = 29,233.63 × 12,572.96
  4. Step 4: Simplify right side
    21,191.79x = 367,553,302.30
  5. Step 5: Solve for x
    x = 367,553,302.30/21,191.79
  6. Step 6: Final answer
    x = 17,344.14

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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.