Home / 40,842.20-56,366.40-22,938.78

Finding the Fourth Proportional to 40,842.20, 56,366.40 and 22,938.78

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Solution

The fourth proportional to 40,842.20, 56,366.40 and 22,938.78 is: 31,657.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,842.20 : 56,366.40 = 22,938.78 : x
  2. Step 2: Convert to fraction form
    40,842.20/56,366.40 = 22,938.78/x
  3. Step 3: Cross multiply
    40,842.20x = 56,366.40 × 22,938.78
  4. Step 4: Simplify right side
    40,842.20x = 1,292,976,448.99
  5. Step 5: Solve for x
    x = 1,292,976,448.99/40,842.20
  6. Step 6: Final answer
    x = 31,657.86

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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.