Home / 28,541.27-42,812.21-12,747.11

Finding the Fourth Proportional to 28,541.27, 42,812.21 and 12,747.11

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Solution

The fourth proportional to 28,541.27, 42,812.21 and 12,747.11 is: 19,120.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,541.27 : 42,812.21 = 12,747.11 : x
  2. Step 2: Convert to fraction form
    28,541.27/42,812.21 = 12,747.11/x
  3. Step 3: Cross multiply
    28,541.27x = 42,812.21 × 12,747.11
  4. Step 4: Simplify right side
    28,541.27x = 545,731,672.42
  5. Step 5: Solve for x
    x = 545,731,672.42/28,541.27
  6. Step 6: Final answer
    x = 19,120.79

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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.