Home / 31,287.28-43,176.60-17,140.13

Finding the Fourth Proportional to 31,287.28, 43,176.60 and 17,140.13

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Solution

The fourth proportional to 31,287.28, 43,176.60 and 17,140.13 is: 23,653.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,287.28 : 43,176.60 = 17,140.13 : x
  2. Step 2: Convert to fraction form
    31,287.28/43,176.60 = 17,140.13/x
  3. Step 3: Cross multiply
    31,287.28x = 43,176.60 × 17,140.13
  4. Step 4: Simplify right side
    31,287.28x = 740,052,536.96
  5. Step 5: Solve for x
    x = 740,052,536.96/31,287.28
  6. Step 6: Final answer
    x = 23,653.46

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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.