Home / 19,278.62-28,920.63-5,952.71

Finding the Fourth Proportional to 19,278.62, 28,920.63 and 5,952.71

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Solution

The fourth proportional to 19,278.62, 28,920.63 and 5,952.71 is: 8,929.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,278.62 : 28,920.63 = 5,952.71 : x
  2. Step 2: Convert to fraction form
    19,278.62/28,920.63 = 5,952.71/x
  3. Step 3: Cross multiply
    19,278.62x = 28,920.63 × 5,952.71
  4. Step 4: Simplify right side
    19,278.62x = 172,155,978.80
  5. Step 5: Solve for x
    x = 172,155,978.80/19,278.62
  6. Step 6: Final answer
    x = 8,929.89

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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.