Home / 19,278.12-28,919.88-5,952.20

Finding the Fourth Proportional to 19,278.12, 28,919.88 and 5,952.20

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Solution

The fourth proportional to 19,278.12, 28,919.88 and 5,952.20 is: 8,929.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,278.12 : 28,919.88 = 5,952.20 : x
  2. Step 2: Convert to fraction form
    19,278.12/28,919.88 = 5,952.20/x
  3. Step 3: Cross multiply
    19,278.12x = 28,919.88 × 5,952.20
  4. Step 4: Simplify right side
    19,278.12x = 172,136,909.74
  5. Step 5: Solve for x
    x = 172,136,909.74/19,278.12
  6. Step 6: Final answer
    x = 8,929.13

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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.