Home / 28,949.16-43,444.49-12,320.88

Finding the Fourth Proportional to 28,949.16, 43,444.49 and 12,320.88

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Solution

The fourth proportional to 28,949.16, 43,444.49 and 12,320.88 is: 18,490.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,949.16 : 43,444.49 = 12,320.88 : x
  2. Step 2: Convert to fraction form
    28,949.16/43,444.49 = 12,320.88/x
  3. Step 3: Cross multiply
    28,949.16x = 43,444.49 × 12,320.88
  4. Step 4: Simplify right side
    28,949.16x = 535,274,347.95
  5. Step 5: Solve for x
    x = 535,274,347.95/28,949.16
  6. Step 6: Final answer
    x = 18,490.15

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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.