Home / 31,421.28-43,360.20-17,273.28

Finding the Fourth Proportional to 31,421.28, 43,360.20 and 17,273.28

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Solution

The fourth proportional to 31,421.28, 43,360.20 and 17,273.28 is: 23,836.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,421.28 : 43,360.20 = 17,273.28 : x
  2. Step 2: Convert to fraction form
    31,421.28/43,360.20 = 17,273.28/x
  3. Step 3: Cross multiply
    31,421.28x = 43,360.20 × 17,273.28
  4. Step 4: Simplify right side
    31,421.28x = 748,972,875.46
  5. Step 5: Solve for x
    x = 748,972,875.46/31,421.28
  6. Step 6: Final answer
    x = 23,836.49

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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.