Home / 15,678.76-23,518.30-3,992

Finding the Fourth Proportional to 15,678.76, 23,518.30 and 3,992

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Solution

The fourth proportional to 15,678.76, 23,518.30 and 3,992 is: 5,988.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,678.76 : 23,518.30 = 3,992 : x
  2. Step 2: Convert to fraction form
    15,678.76/23,518.30 = 3,992/x
  3. Step 3: Cross multiply
    15,678.76x = 23,518.30 × 3,992
  4. Step 4: Simplify right side
    15,678.76x = 93,885,053.60
  5. Step 5: Solve for x
    x = 93,885,053.60/15,678.76
  6. Step 6: Final answer
    x = 5,988.04

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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.