Home / 21,569.92-32,354.90-6,780.13

Finding the Fourth Proportional to 21,569.92, 32,354.90 and 6,780.13

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Solution

The fourth proportional to 21,569.92, 32,354.90 and 6,780.13 is: 10,170.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,569.92 : 32,354.90 = 6,780.13 : x
  2. Step 2: Convert to fraction form
    21,569.92/32,354.90 = 6,780.13/x
  3. Step 3: Cross multiply
    21,569.92x = 32,354.90 × 6,780.13
  4. Step 4: Simplify right side
    21,569.92x = 219,370,445.09
  5. Step 5: Solve for x
    x = 219,370,445.09/21,569.92
  6. Step 6: Final answer
    x = 10,170.20

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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.