Home / 15,404.24-21,257.16-14,229.20

Finding the Fourth Proportional to 15,404.24, 21,257.16 and 14,229.20

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Solution

The fourth proportional to 15,404.24, 21,257.16 and 14,229.20 is: 19,635.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,404.24 : 21,257.16 = 14,229.20 : x
  2. Step 2: Convert to fraction form
    15,404.24/21,257.16 = 14,229.20/x
  3. Step 3: Cross multiply
    15,404.24x = 21,257.16 × 14,229.20
  4. Step 4: Simplify right side
    15,404.24x = 302,472,381.07
  5. Step 5: Solve for x
    x = 302,472,381.07/15,404.24
  6. Step 6: Final answer
    x = 19,635.66

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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.