Home / 31,277.72-43,154.21-17,665.04

Finding the Fourth Proportional to 31,277.72, 43,154.21 and 17,665.04

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Solution

The fourth proportional to 31,277.72, 43,154.21 and 17,665.04 is: 24,372.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,277.72 : 43,154.21 = 17,665.04 : x
  2. Step 2: Convert to fraction form
    31,277.72/43,154.21 = 17,665.04/x
  3. Step 3: Cross multiply
    31,277.72x = 43,154.21 × 17,665.04
  4. Step 4: Simplify right side
    31,277.72x = 762,320,686.81
  5. Step 5: Solve for x
    x = 762,320,686.81/31,277.72
  6. Step 6: Final answer
    x = 24,372.65

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1.5x scale

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.