Home / 18,970.38-28,459.80-5,824.08

Finding the Fourth Proportional to 18,970.38, 28,459.80 and 5,824.08

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Solution

The fourth proportional to 18,970.38, 28,459.80 and 5,824.08 is: 8,737.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,970.38 : 28,459.80 = 5,824.08 : x
  2. Step 2: Convert to fraction form
    18,970.38/28,459.80 = 5,824.08/x
  3. Step 3: Cross multiply
    18,970.38x = 28,459.80 × 5,824.08
  4. Step 4: Simplify right side
    18,970.38x = 165,752,151.98
  5. Step 5: Solve for x
    x = 165,752,151.98/18,970.38
  6. Step 6: Final answer
    x = 8,737.42

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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.