Home / 15,425.18-23,137.85-4,751.42

Finding the Fourth Proportional to 15,425.18, 23,137.85 and 4,751.42

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Solution

The fourth proportional to 15,425.18, 23,137.85 and 4,751.42 is: 7,127.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,425.18 : 23,137.85 = 4,751.42 : x
  2. Step 2: Convert to fraction form
    15,425.18/23,137.85 = 4,751.42/x
  3. Step 3: Cross multiply
    15,425.18x = 23,137.85 × 4,751.42
  4. Step 4: Simplify right side
    15,425.18x = 109,937,521.62
  5. Step 5: Solve for x
    x = 109,937,521.62/15,425.18
  6. Step 6: Final answer
    x = 7,127.15

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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.