Home / 29,215.62-43,823.16-12,587.40

Finding the Fourth Proportional to 29,215.62, 43,823.16 and 12,587.40

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Solution

The fourth proportional to 29,215.62, 43,823.16 and 12,587.40 is: 18,880.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,215.62 : 43,823.16 = 12,587.40 : x
  2. Step 2: Convert to fraction form
    29,215.62/43,823.16 = 12,587.40/x
  3. Step 3: Cross multiply
    29,215.62x = 43,823.16 × 12,587.40
  4. Step 4: Simplify right side
    29,215.62x = 551,619,644.18
  5. Step 5: Solve for x
    x = 551,619,644.18/29,215.62
  6. Step 6: Final answer
    x = 18,880.98

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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.