Home / 21,590.53-29,788.73-14,877.97

Finding the Fourth Proportional to 21,590.53, 29,788.73 and 14,877.97

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Solution

The fourth proportional to 21,590.53, 29,788.73 and 14,877.97 is: 20,527.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,590.53 : 29,788.73 = 14,877.97 : x
  2. Step 2: Convert to fraction form
    21,590.53/29,788.73 = 14,877.97/x
  3. Step 3: Cross multiply
    21,590.53x = 29,788.73 × 14,877.97
  4. Step 4: Simplify right side
    21,590.53x = 443,195,719.53
  5. Step 5: Solve for x
    x = 443,195,719.53/21,590.53
  6. Step 6: Final answer
    x = 20,527.32

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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.