Home / 40,378.18-55,721.84-22,472.76

Finding the Fourth Proportional to 40,378.18, 55,721.84 and 22,472.76

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Solution

The fourth proportional to 40,378.18, 55,721.84 and 22,472.76 is: 31,012.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,378.18 : 55,721.84 = 22,472.76 : x
  2. Step 2: Convert to fraction form
    40,378.18/55,721.84 = 22,472.76/x
  3. Step 3: Cross multiply
    40,378.18x = 55,721.84 × 22,472.76
  4. Step 4: Simplify right side
    40,378.18x = 1,252,223,537.08
  5. Step 5: Solve for x
    x = 1,252,223,537.08/40,378.18
  6. Step 6: Final answer
    x = 31,012.38

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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.