Home / 21,575.28-32,352.10-12,572.31

Finding the Fourth Proportional to 21,575.28, 32,352.10 and 12,572.31

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Solution

The fourth proportional to 21,575.28, 32,352.10 and 12,572.31 is: 18,852.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,575.28 : 32,352.10 = 12,572.31 : x
  2. Step 2: Convert to fraction form
    21,575.28/32,352.10 = 12,572.31/x
  3. Step 3: Cross multiply
    21,575.28x = 32,352.10 × 12,572.31
  4. Step 4: Simplify right side
    21,575.28x = 406,740,711.23
  5. Step 5: Solve for x
    x = 406,740,711.23/21,575.28
  6. Step 6: Final answer
    x = 18,852.16

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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.