Home / 20,868.40-31,273.28-14,997.52

Finding the Fourth Proportional to 20,868.40, 31,273.28 and 14,997.52

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Solution

The fourth proportional to 20,868.40, 31,273.28 and 14,997.52 is: 22,475.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,868.40 : 31,273.28 = 14,997.52 : x
  2. Step 2: Convert to fraction form
    20,868.40/31,273.28 = 14,997.52/x
  3. Step 3: Cross multiply
    20,868.40x = 31,273.28 × 14,997.52
  4. Step 4: Simplify right side
    20,868.40x = 469,021,642.27
  5. Step 5: Solve for x
    x = 469,021,642.27/20,868.40
  6. Step 6: Final answer
    x = 22,475.21

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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.