Home / 18,862.18-28,387.96-14,206.30

Finding the Fourth Proportional to 18,862.18, 28,387.96 and 14,206.30

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Solution

The fourth proportional to 18,862.18, 28,387.96 and 14,206.30 is: 21,380.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,862.18 : 28,387.96 = 14,206.30 : x
  2. Step 2: Convert to fraction form
    18,862.18/28,387.96 = 14,206.30/x
  3. Step 3: Cross multiply
    18,862.18x = 28,387.96 × 14,206.30
  4. Step 4: Simplify right side
    18,862.18x = 403,287,876.15
  5. Step 5: Solve for x
    x = 403,287,876.15/18,862.18
  6. Step 6: Final answer
    x = 21,380.77

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.