Home / 40,721.16-56,191.98-22,812.12

Finding the Fourth Proportional to 40,721.16, 56,191.98 and 22,812.12

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Solution

The fourth proportional to 40,721.16, 56,191.98 and 22,812.12 is: 31,478.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,721.16 : 56,191.98 = 22,812.12 : x
  2. Step 2: Convert to fraction form
    40,721.16/56,191.98 = 22,812.12/x
  3. Step 3: Cross multiply
    40,721.16x = 56,191.98 × 22,812.12
  4. Step 4: Simplify right side
    40,721.16x = 1,281,858,190.80
  5. Step 5: Solve for x
    x = 1,281,858,190.80/40,721.16
  6. Step 6: Final answer
    x = 31,478.92

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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.