Home / 28,316.19-42,475.25-7,539.71

Finding the Fourth Proportional to 28,316.19, 42,475.25 and 7,539.71

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Solution

The fourth proportional to 28,316.19, 42,475.25 and 7,539.71 is: 11,309.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,316.19 : 42,475.25 = 7,539.71 : x
  2. Step 2: Convert to fraction form
    28,316.19/42,475.25 = 7,539.71/x
  3. Step 3: Cross multiply
    28,316.19x = 42,475.25 × 7,539.71
  4. Step 4: Simplify right side
    28,316.19x = 320,251,067.18
  5. Step 5: Solve for x
    x = 320,251,067.18/28,316.19
  6. Step 6: Final answer
    x = 11,309.82

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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.