Home / 40,211.40-55,490.72-22,306.80

Finding the Fourth Proportional to 40,211.40, 55,490.72 and 22,306.80

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Solution

The fourth proportional to 40,211.40, 55,490.72 and 22,306.80 is: 30,782.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,211.40 : 55,490.72 = 22,306.80 : x
  2. Step 2: Convert to fraction form
    40,211.40/55,490.72 = 22,306.80/x
  3. Step 3: Cross multiply
    40,211.40x = 55,490.72 × 22,306.80
  4. Step 4: Simplify right side
    40,211.40x = 1,237,820,392.90
  5. Step 5: Solve for x
    x = 1,237,820,392.90/40,211.40
  6. Step 6: Final answer
    x = 30,782.82

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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.