Home / 31,402.78-43,335.87-17,256.46

Finding the Fourth Proportional to 31,402.78, 43,335.87 and 17,256.46

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Solution

The fourth proportional to 31,402.78, 43,335.87 and 17,256.46 is: 23,813.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,402.78 : 43,335.87 = 17,256.46 : x
  2. Step 2: Convert to fraction form
    31,402.78/43,335.87 = 17,256.46/x
  3. Step 3: Cross multiply
    31,402.78x = 43,335.87 × 17,256.46
  4. Step 4: Simplify right side
    31,402.78x = 747,823,707.22
  5. Step 5: Solve for x
    x = 747,823,707.22/31,402.78
  6. Step 6: Final answer
    x = 23,813.93

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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.