Home / 31,319.92-43,220.61-17,890.90

Finding the Fourth Proportional to 31,319.92, 43,220.61 and 17,890.90

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Solution

The fourth proportional to 31,319.92, 43,220.61 and 17,890.90 is: 24,688.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,319.92 : 43,220.61 = 17,890.90 : x
  2. Step 2: Convert to fraction form
    31,319.92/43,220.61 = 17,890.90/x
  3. Step 3: Cross multiply
    31,319.92x = 43,220.61 × 17,890.90
  4. Step 4: Simplify right side
    31,319.92x = 773,255,611.45
  5. Step 5: Solve for x
    x = 773,255,611.45/31,319.92
  6. Step 6: Final answer
    x = 24,688.94

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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.