Home / 31,470.14-43,428.80-17,322.88

Finding the Fourth Proportional to 31,470.14, 43,428.80 and 17,322.88

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Solution

The fourth proportional to 31,470.14, 43,428.80 and 17,322.88 is: 23,905.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,470.14 : 43,428.80 = 17,322.88 : x
  2. Step 2: Convert to fraction form
    31,470.14/43,428.80 = 17,322.88/x
  3. Step 3: Cross multiply
    31,470.14x = 43,428.80 × 17,322.88
  4. Step 4: Simplify right side
    31,470.14x = 752,311,587.19
  5. Step 5: Solve for x
    x = 752,311,587.19/31,470.14
  6. Step 6: Final answer
    x = 23,905.57

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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.