Home / 28,038.91-41,972.49-18,158.53

Finding the Fourth Proportional to 28,038.91, 41,972.49 and 18,158.53

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Solution

The fourth proportional to 28,038.91, 41,972.49 and 18,158.53 is: 27,182.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,038.91 : 41,972.49 = 18,158.53 : x
  2. Step 2: Convert to fraction form
    28,038.91/41,972.49 = 18,158.53/x
  3. Step 3: Cross multiply
    28,038.91x = 41,972.49 × 18,158.53
  4. Step 4: Simplify right side
    28,038.91x = 762,158,718.84
  5. Step 5: Solve for x
    x = 762,158,718.84/28,038.91
  6. Step 6: Final answer
    x = 27,182.18

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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.