Home / 28,023.66-38,672.91-15,448.86

Finding the Fourth Proportional to 28,023.66, 38,672.91 and 15,448.86

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Solution

The fourth proportional to 28,023.66, 38,672.91 and 15,448.86 is: 21,319.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,023.66 : 38,672.91 = 15,448.86 : x
  2. Step 2: Convert to fraction form
    28,023.66/38,672.91 = 15,448.86/x
  3. Step 3: Cross multiply
    28,023.66x = 38,672.91 × 15,448.86
  4. Step 4: Simplify right side
    28,023.66x = 597,452,372.38
  5. Step 5: Solve for x
    x = 597,452,372.38/28,023.66
  6. Step 6: Final answer
    x = 21,319.57

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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.