Home / 31,834.36-43,931.10-17,686.90

Finding the Fourth Proportional to 31,834.36, 43,931.10 and 17,686.90

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Solution

The fourth proportional to 31,834.36, 43,931.10 and 17,686.90 is: 24,407.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,834.36 : 43,931.10 = 17,686.90 : x
  2. Step 2: Convert to fraction form
    31,834.36/43,931.10 = 17,686.90/x
  3. Step 3: Cross multiply
    31,834.36x = 43,931.10 × 17,686.90
  4. Step 4: Simplify right side
    31,834.36x = 777,004,972.59
  5. Step 5: Solve for x
    x = 777,004,972.59/31,834.36
  6. Step 6: Final answer
    x = 24,407.75

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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.