Home / 20,237.44-27,931.20-15,449.52

Finding the Fourth Proportional to 20,237.44, 27,931.20 and 15,449.52

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Solution

The fourth proportional to 20,237.44, 27,931.20 and 15,449.52 is: 21,323.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,237.44 : 27,931.20 = 15,449.52 : x
  2. Step 2: Convert to fraction form
    20,237.44/27,931.20 = 15,449.52/x
  3. Step 3: Cross multiply
    20,237.44x = 27,931.20 × 15,449.52
  4. Step 4: Simplify right side
    20,237.44x = 431,523,633.02
  5. Step 5: Solve for x
    x = 431,523,633.02/20,237.44
  6. Step 6: Final answer
    x = 21,323.03

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.