Home / 29,257.12-43,890-8,477.92

Finding the Fourth Proportional to 29,257.12, 43,890 and 8,477.92

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Solution

The fourth proportional to 29,257.12, 43,890 and 8,477.92 is: 12,718.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,257.12 : 43,890 = 8,477.92 : x
  2. Step 2: Convert to fraction form
    29,257.12/43,890 = 8,477.92/x
  3. Step 3: Cross multiply
    29,257.12x = 43,890 × 8,477.92
  4. Step 4: Simplify right side
    29,257.12x = 372,095,908.80
  5. Step 5: Solve for x
    x = 372,095,908.80/29,257.12
  6. Step 6: Final answer
    x = 12,718.13

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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.