Home / 28,484.52-42,742.12-11,856.04

Finding the Fourth Proportional to 28,484.52, 42,742.12 and 11,856.04

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Solution

The fourth proportional to 28,484.52, 42,742.12 and 11,856.04 is: 17,790.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,484.52 : 42,742.12 = 11,856.04 : x
  2. Step 2: Convert to fraction form
    28,484.52/42,742.12 = 11,856.04/x
  3. Step 3: Cross multiply
    28,484.52x = 42,742.12 × 11,856.04
  4. Step 4: Simplify right side
    28,484.52x = 506,752,284.40
  5. Step 5: Solve for x
    x = 506,752,284.40/28,484.52
  6. Step 6: Final answer
    x = 17,790.44

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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.