Home / 21,045.75-31,522.28-17,397.92

Finding the Fourth Proportional to 21,045.75, 31,522.28 and 17,397.92

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Solution

The fourth proportional to 21,045.75, 31,522.28 and 17,397.92 is: 26,058.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,045.75 : 31,522.28 = 17,397.92 : x
  2. Step 2: Convert to fraction form
    21,045.75/31,522.28 = 17,397.92/x
  3. Step 3: Cross multiply
    21,045.75x = 31,522.28 × 17,397.92
  4. Step 4: Simplify right side
    21,045.75x = 548,421,861.06
  5. Step 5: Solve for x
    x = 548,421,861.06/21,045.75
  6. Step 6: Final answer
    x = 26,058.56

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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.