Home / 28,346.36-42,454.87-13,565.71

Finding the Fourth Proportional to 28,346.36, 42,454.87 and 13,565.71

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Solution

The fourth proportional to 28,346.36, 42,454.87 and 13,565.71 is: 20,317.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,346.36 : 42,454.87 = 13,565.71 : x
  2. Step 2: Convert to fraction form
    28,346.36/42,454.87 = 13,565.71/x
  3. Step 3: Cross multiply
    28,346.36x = 42,454.87 × 13,565.71
  4. Step 4: Simplify right side
    28,346.36x = 575,930,473.66
  5. Step 5: Solve for x
    x = 575,930,473.66/28,346.36
  6. Step 6: Final answer
    x = 20,317.62

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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.