Home / 28,023.28-38,670.60-15,447.04

Finding the Fourth Proportional to 28,023.28, 38,670.60 and 15,447.04

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Solution

The fourth proportional to 28,023.28, 38,670.60 and 15,447.04 is: 21,316.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,023.28 : 38,670.60 = 15,447.04 : x
  2. Step 2: Convert to fraction form
    28,023.28/38,670.60 = 15,447.04/x
  3. Step 3: Cross multiply
    28,023.28x = 38,670.60 × 15,447.04
  4. Step 4: Simplify right side
    28,023.28x = 597,346,305.02
  5. Step 5: Solve for x
    x = 597,346,305.02/28,023.28
  6. Step 6: Final answer
    x = 21,316.07

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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.