Home / 31,278.34-43,164.12-17,132.06

Finding the Fourth Proportional to 31,278.34, 43,164.12 and 17,132.06

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Solution

The fourth proportional to 31,278.34, 43,164.12 and 17,132.06 is: 23,642.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,278.34 : 43,164.12 = 17,132.06 : x
  2. Step 2: Convert to fraction form
    31,278.34/43,164.12 = 17,132.06/x
  3. Step 3: Cross multiply
    31,278.34x = 43,164.12 × 17,132.06
  4. Step 4: Simplify right side
    31,278.34x = 739,490,293.69
  5. Step 5: Solve for x
    x = 739,490,293.69/31,278.34
  6. Step 6: Final answer
    x = 23,642.25

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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.