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Finding the Fourth Proportional to 25,612.70, 38,419.05 and 21,676.10

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Solution

The fourth proportional to 25,612.70, 38,419.05 and 21,676.10 is: 32,514.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,612.70 : 38,419.05 = 21,676.10 : x
  2. Step 2: Convert to fraction form
    25,612.70/38,419.05 = 21,676.10/x
  3. Step 3: Cross multiply
    25,612.70x = 38,419.05 × 21,676.10
  4. Step 4: Simplify right side
    25,612.70x = 832,775,169.71
  5. Step 5: Solve for x
    x = 832,775,169.71/25,612.70
  6. Step 6: Final answer
    x = 32,514.15

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.