Home / 28,449.76-42,701.06-14,419.68

Finding the Fourth Proportional to 28,449.76, 42,701.06 and 14,419.68

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Solution

The fourth proportional to 28,449.76, 42,701.06 and 14,419.68 is: 21,642.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,449.76 : 42,701.06 = 14,419.68 : x
  2. Step 2: Convert to fraction form
    28,449.76/42,701.06 = 14,419.68/x
  3. Step 3: Cross multiply
    28,449.76x = 42,701.06 × 14,419.68
  4. Step 4: Simplify right side
    28,449.76x = 615,735,620.86
  5. Step 5: Solve for x
    x = 615,735,620.86/28,449.76
  6. Step 6: Final answer
    x = 21,642.91

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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.