Home / 21,306.64-29,404.56-11,875.48

Finding the Fourth Proportional to 21,306.64, 29,404.56 and 11,875.48

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Solution

The fourth proportional to 21,306.64, 29,404.56 and 11,875.48 is: 16,388.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,306.64 : 29,404.56 = 11,875.48 : x
  2. Step 2: Convert to fraction form
    21,306.64/29,404.56 = 11,875.48/x
  3. Step 3: Cross multiply
    21,306.64x = 29,404.56 × 11,875.48
  4. Step 4: Simplify right side
    21,306.64x = 349,193,264.19
  5. Step 5: Solve for x
    x = 349,193,264.19/21,306.64
  6. Step 6: Final answer
    x = 16,388.94

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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.