Home / 21,404.34-29,535.45-11,842.97

Finding the Fourth Proportional to 21,404.34, 29,535.45 and 11,842.97

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Solution

The fourth proportional to 21,404.34, 29,535.45 and 11,842.97 is: 16,341.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,404.34 : 29,535.45 = 11,842.97 : x
  2. Step 2: Convert to fraction form
    21,404.34/29,535.45 = 11,842.97/x
  3. Step 3: Cross multiply
    21,404.34x = 29,535.45 × 11,842.97
  4. Step 4: Simplify right side
    21,404.34x = 349,787,300.61
  5. Step 5: Solve for x
    x = 349,787,300.61/21,404.34
  6. Step 6: Final answer
    x = 16,341.89

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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.