Home / 29,430.72-44,121.20-12,778.16

Finding the Fourth Proportional to 29,430.72, 44,121.20 and 12,778.16

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Solution

The fourth proportional to 29,430.72, 44,121.20 and 12,778.16 is: 19,156.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,430.72 : 44,121.20 = 12,778.16 : x
  2. Step 2: Convert to fraction form
    29,430.72/44,121.20 = 12,778.16/x
  3. Step 3: Cross multiply
    29,430.72x = 44,121.20 × 12,778.16
  4. Step 4: Simplify right side
    29,430.72x = 563,787,468.50
  5. Step 5: Solve for x
    x = 563,787,468.50/29,430.72
  6. Step 6: Final answer
    x = 19,156.43

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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.