Home / 21,425.18-32,132.91-7,574.18

Finding the Fourth Proportional to 21,425.18, 32,132.91 and 7,574.18

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Solution

The fourth proportional to 21,425.18, 32,132.91 and 7,574.18 is: 11,359.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,425.18 : 32,132.91 = 7,574.18 : x
  2. Step 2: Convert to fraction form
    21,425.18/32,132.91 = 7,574.18/x
  3. Step 3: Cross multiply
    21,425.18x = 32,132.91 × 7,574.18
  4. Step 4: Simplify right side
    21,425.18x = 243,380,444.26
  5. Step 5: Solve for x
    x = 243,380,444.26/21,425.18
  6. Step 6: Final answer
    x = 11,359.55

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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.