Home / 15,990.30-23,985.45-4,896.90

Finding the Fourth Proportional to 15,990.30, 23,985.45 and 4,896.90

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Solution

The fourth proportional to 15,990.30, 23,985.45 and 4,896.90 is: 7,345.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,990.30 : 23,985.45 = 4,896.90 : x
  2. Step 2: Convert to fraction form
    15,990.30/23,985.45 = 4,896.90/x
  3. Step 3: Cross multiply
    15,990.30x = 23,985.45 × 4,896.90
  4. Step 4: Simplify right side
    15,990.30x = 117,454,350.11
  5. Step 5: Solve for x
    x = 117,454,350.11/15,990.30
  6. Step 6: Final answer
    x = 7,345.35

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Similar ratio
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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.