Home / 28,616.18-42,901.95-11,965.46

Finding the Fourth Proportional to 28,616.18, 42,901.95 and 11,965.46

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Solution

The fourth proportional to 28,616.18, 42,901.95 and 11,965.46 is: 17,938.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,616.18 : 42,901.95 = 11,965.46 : x
  2. Step 2: Convert to fraction form
    28,616.18/42,901.95 = 11,965.46/x
  3. Step 3: Cross multiply
    28,616.18x = 42,901.95 × 11,965.46
  4. Step 4: Simplify right side
    28,616.18x = 513,341,566.65
  5. Step 5: Solve for x
    x = 513,341,566.65/28,616.18
  6. Step 6: Final answer
    x = 17,938.86

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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.