Home / 28,282.04-42,422.17-7,222.01

Finding the Fourth Proportional to 28,282.04, 42,422.17 and 7,222.01

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Solution

The fourth proportional to 28,282.04, 42,422.17 and 7,222.01 is: 10,832.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,282.04 : 42,422.17 = 7,222.01 : x
  2. Step 2: Convert to fraction form
    28,282.04/42,422.17 = 7,222.01/x
  3. Step 3: Cross multiply
    28,282.04x = 42,422.17 × 7,222.01
  4. Step 4: Simplify right side
    28,282.04x = 306,373,211.85
  5. Step 5: Solve for x
    x = 306,373,211.85/28,282.04
  6. Step 6: Final answer
    x = 10,832.78

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.