Home / 31,154.76-43,002.50-18,410.09

Finding the Fourth Proportional to 31,154.76, 43,002.50 and 18,410.09

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Solution

The fourth proportional to 31,154.76, 43,002.50 and 18,410.09 is: 25,411.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,154.76 : 43,002.50 = 18,410.09 : x
  2. Step 2: Convert to fraction form
    31,154.76/43,002.50 = 18,410.09/x
  3. Step 3: Cross multiply
    31,154.76x = 43,002.50 × 18,410.09
  4. Step 4: Simplify right side
    31,154.76x = 791,679,588.16
  5. Step 5: Solve for x
    x = 791,679,588.16/31,154.76
  6. Step 6: Final answer
    x = 25,411.19

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.