Home / 29,328.19-40,428.11-17,976.65

Finding the Fourth Proportional to 29,328.19, 40,428.11 and 17,976.65

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Solution

The fourth proportional to 29,328.19, 40,428.11 and 17,976.65 is: 24,780.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,328.19 : 40,428.11 = 17,976.65 : x
  2. Step 2: Convert to fraction form
    29,328.19/40,428.11 = 17,976.65/x
  3. Step 3: Cross multiply
    29,328.19x = 40,428.11 × 17,976.65
  4. Step 4: Simplify right side
    29,328.19x = 726,761,826.43
  5. Step 5: Solve for x
    x = 726,761,826.43/29,328.19
  6. Step 6: Final answer
    x = 24,780.32

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1.5x scale

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.