Home / 28,688.17-43,034.13-7,627.90

Finding the Fourth Proportional to 28,688.17, 43,034.13 and 7,627.90

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Solution

The fourth proportional to 28,688.17, 43,034.13 and 7,627.90 is: 11,442.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,688.17 : 43,034.13 = 7,627.90 : x
  2. Step 2: Convert to fraction form
    28,688.17/43,034.13 = 7,627.90/x
  3. Step 3: Cross multiply
    28,688.17x = 43,034.13 × 7,627.90
  4. Step 4: Simplify right side
    28,688.17x = 328,260,040.23
  5. Step 5: Solve for x
    x = 328,260,040.23/28,688.17
  6. Step 6: Final answer
    x = 11,442.35

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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.