Home / 18,814.50-28,316.25-14,158.62

Finding the Fourth Proportional to 18,814.50, 28,316.25 and 14,158.62

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Solution

The fourth proportional to 18,814.50, 28,316.25 and 14,158.62 is: 21,309.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,814.50 : 28,316.25 = 14,158.62 : x
  2. Step 2: Convert to fraction form
    18,814.50/28,316.25 = 14,158.62/x
  3. Step 3: Cross multiply
    18,814.50x = 28,316.25 × 14,158.62
  4. Step 4: Simplify right side
    18,814.50x = 400,919,023.58
  5. Step 5: Solve for x
    x = 400,919,023.58/18,814.50
  6. Step 6: Final answer
    x = 21,309.04

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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.