Home / 28,428.18-42,627.19-8,701.44

Finding the Fourth Proportional to 28,428.18, 42,627.19 and 8,701.44

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Solution

The fourth proportional to 28,428.18, 42,627.19 and 8,701.44 is: 13,047.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,428.18 : 42,627.19 = 8,701.44 : x
  2. Step 2: Convert to fraction form
    28,428.18/42,627.19 = 8,701.44/x
  3. Step 3: Cross multiply
    28,428.18x = 42,627.19 × 8,701.44
  4. Step 4: Simplify right side
    28,428.18x = 370,917,892.65
  5. Step 5: Solve for x
    x = 370,917,892.65/28,428.18
  6. Step 6: Final answer
    x = 13,047.54

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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.