Home / 28,069.14-38,781.90-22,145.88

Finding the Fourth Proportional to 28,069.14, 38,781.90 and 22,145.88

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Solution

The fourth proportional to 28,069.14, 38,781.90 and 22,145.88 is: 30,597.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,069.14 : 38,781.90 = 22,145.88 : x
  2. Step 2: Convert to fraction form
    28,069.14/38,781.90 = 22,145.88/x
  3. Step 3: Cross multiply
    28,069.14x = 38,781.90 × 22,145.88
  4. Step 4: Simplify right side
    28,069.14x = 858,859,303.57
  5. Step 5: Solve for x
    x = 858,859,303.57/28,069.14
  6. Step 6: Final answer
    x = 30,597.99

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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.