Home / 16,665.80-25,002.30-4,980.20

Finding the Fourth Proportional to 16,665.80, 25,002.30 and 4,980.20

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Solution

The fourth proportional to 16,665.80, 25,002.30 and 4,980.20 is: 7,471.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,665.80 : 25,002.30 = 4,980.20 : x
  2. Step 2: Convert to fraction form
    16,665.80/25,002.30 = 4,980.20/x
  3. Step 3: Cross multiply
    16,665.80x = 25,002.30 × 4,980.20
  4. Step 4: Simplify right side
    16,665.80x = 124,516,454.46
  5. Step 5: Solve for x
    x = 124,516,454.46/16,665.80
  6. Step 6: Final answer
    x = 7,471.38

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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.