Home / 28,320.48-42,501.78-22,839.48

Finding the Fourth Proportional to 28,320.48, 42,501.78 and 22,839.48

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Solution

The fourth proportional to 28,320.48, 42,501.78 and 22,839.48 is: 34,276.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,320.48 : 42,501.78 = 22,839.48 : x
  2. Step 2: Convert to fraction form
    28,320.48/42,501.78 = 22,839.48/x
  3. Step 3: Cross multiply
    28,320.48x = 42,501.78 × 22,839.48
  4. Step 4: Simplify right side
    28,320.48x = 970,718,554.27
  5. Step 5: Solve for x
    x = 970,718,554.27/28,320.48
  6. Step 6: Final answer
    x = 34,276.20

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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.