Home / 31,435.97-43,382.45-17,289.18

Finding the Fourth Proportional to 31,435.97, 43,382.45 and 17,289.18

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Solution

The fourth proportional to 31,435.97, 43,382.45 and 17,289.18 is: 23,859.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,435.97 : 43,382.45 = 17,289.18 : x
  2. Step 2: Convert to fraction form
    31,435.97/43,382.45 = 17,289.18/x
  3. Step 3: Cross multiply
    31,435.97x = 43,382.45 × 17,289.18
  4. Step 4: Simplify right side
    31,435.97x = 750,047,030.11
  5. Step 5: Solve for x
    x = 750,047,030.11/31,435.97
  6. Step 6: Final answer
    x = 23,859.52

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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.