Home / 21,572.96-32,358.52-6,781.56

Finding the Fourth Proportional to 21,572.96, 32,358.52 and 6,781.56

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Solution

The fourth proportional to 21,572.96, 32,358.52 and 6,781.56 is: 10,172.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,572.96 : 32,358.52 = 6,781.56 : x
  2. Step 2: Convert to fraction form
    21,572.96/32,358.52 = 6,781.56/x
  3. Step 3: Cross multiply
    21,572.96x = 32,358.52 × 6,781.56
  4. Step 4: Simplify right side
    21,572.96x = 219,441,244.89
  5. Step 5: Solve for x
    x = 219,441,244.89/21,572.96
  6. Step 6: Final answer
    x = 10,172.05

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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.