Home / 48,428.61-66,828.42-28,291.20

Finding the Fourth Proportional to 48,428.61, 66,828.42 and 28,291.20

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Solution

The fourth proportional to 48,428.61, 66,828.42 and 28,291.20 is: 39,040.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,428.61 : 66,828.42 = 28,291.20 : x
  2. Step 2: Convert to fraction form
    48,428.61/66,828.42 = 28,291.20/x
  3. Step 3: Cross multiply
    48,428.61x = 66,828.42 × 28,291.20
  4. Step 4: Simplify right side
    48,428.61x = 1,890,656,195.90
  5. Step 5: Solve for x
    x = 1,890,656,195.90/48,428.61
  6. Step 6: Final answer
    x = 39,040.07

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.