Home / 28,626.12-42,935.76-7,851.24

Finding the Fourth Proportional to 28,626.12, 42,935.76 and 7,851.24

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Solution

The fourth proportional to 28,626.12, 42,935.76 and 7,851.24 is: 11,775.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,626.12 : 42,935.76 = 7,851.24 : x
  2. Step 2: Convert to fraction form
    28,626.12/42,935.76 = 7,851.24/x
  3. Step 3: Cross multiply
    28,626.12x = 42,935.76 × 7,851.24
  4. Step 4: Simplify right side
    28,626.12x = 337,098,956.34
  5. Step 5: Solve for x
    x = 337,098,956.34/28,626.12
  6. Step 6: Final answer
    x = 11,775.92

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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.