Home / 31,280.14-43,167.64-17,133.76

Finding the Fourth Proportional to 31,280.14, 43,167.64 and 17,133.76

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Solution

The fourth proportional to 31,280.14, 43,167.64 and 17,133.76 is: 23,645.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,280.14 : 43,167.64 = 17,133.76 : x
  2. Step 2: Convert to fraction form
    31,280.14/43,167.64 = 17,133.76/x
  3. Step 3: Cross multiply
    31,280.14x = 43,167.64 × 17,133.76
  4. Step 4: Simplify right side
    31,280.14x = 739,623,983.53
  5. Step 5: Solve for x
    x = 739,623,983.53/31,280.14
  6. Step 6: Final answer
    x = 23,645.16

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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.