Home / 31,281.52-43,169.88-17,856.40

Finding the Fourth Proportional to 31,281.52, 43,169.88 and 17,856.40

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Solution

The fourth proportional to 31,281.52, 43,169.88 and 17,856.40 is: 24,642.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,281.52 : 43,169.88 = 17,856.40 : x
  2. Step 2: Convert to fraction form
    31,281.52/43,169.88 = 17,856.40/x
  3. Step 3: Cross multiply
    31,281.52x = 43,169.88 × 17,856.40
  4. Step 4: Simplify right side
    31,281.52x = 770,858,645.23
  5. Step 5: Solve for x
    x = 770,858,645.23/31,281.52
  6. Step 6: Final answer
    x = 24,642.62

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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.