Home / 21,014.73-31,523.18-5,432.49

Finding the Fourth Proportional to 21,014.73, 31,523.18 and 5,432.49

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Solution

The fourth proportional to 21,014.73, 31,523.18 and 5,432.49 is: 8,149.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,014.73 : 31,523.18 = 5,432.49 : x
  2. Step 2: Convert to fraction form
    21,014.73/31,523.18 = 5,432.49/x
  3. Step 3: Cross multiply
    21,014.73x = 31,523.18 × 5,432.49
  4. Step 4: Simplify right side
    21,014.73x = 171,249,360.12
  5. Step 5: Solve for x
    x = 171,249,360.12/21,014.73
  6. Step 6: Final answer
    x = 8,149.02

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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.