Home / 18,924.38-28,385.54-5,775.74

Finding the Fourth Proportional to 18,924.38, 28,385.54 and 5,775.74

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Solution

The fourth proportional to 18,924.38, 28,385.54 and 5,775.74 is: 8,663.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,924.38 : 28,385.54 = 5,775.74 : x
  2. Step 2: Convert to fraction form
    18,924.38/28,385.54 = 5,775.74/x
  3. Step 3: Cross multiply
    18,924.38x = 28,385.54 × 5,775.74
  4. Step 4: Simplify right side
    18,924.38x = 163,947,498.80
  5. Step 5: Solve for x
    x = 163,947,498.80/18,924.38
  6. Step 6: Final answer
    x = 8,663.30

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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.