Home / 30,218.88-41,690.40-22,279.92

Finding the Fourth Proportional to 30,218.88, 41,690.40 and 22,279.92

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Solution

The fourth proportional to 30,218.88, 41,690.40 and 22,279.92 is: 30,737.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,218.88 : 41,690.40 = 22,279.92 : x
  2. Step 2: Convert to fraction form
    30,218.88/41,690.40 = 22,279.92/x
  3. Step 3: Cross multiply
    30,218.88x = 41,690.40 × 22,279.92
  4. Step 4: Simplify right side
    30,218.88x = 928,858,776.77
  5. Step 5: Solve for x
    x = 928,858,776.77/30,218.88
  6. Step 6: Final answer
    x = 30,737.70

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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.