Home / 39,321.17-54,263.82-21,416.15

Finding the Fourth Proportional to 39,321.17, 54,263.82 and 21,416.15

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Solution

The fourth proportional to 39,321.17, 54,263.82 and 21,416.15 is: 29,554.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,321.17 : 54,263.82 = 21,416.15 : x
  2. Step 2: Convert to fraction form
    39,321.17/54,263.82 = 21,416.15/x
  3. Step 3: Cross multiply
    39,321.17x = 54,263.82 × 21,416.15
  4. Step 4: Simplify right side
    39,321.17x = 1,162,122,108.69
  5. Step 5: Solve for x
    x = 1,162,122,108.69/39,321.17
  6. Step 6: Final answer
    x = 29,554.62

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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.