Home / 28,755.20-43,118.18-13,159.46

Finding the Fourth Proportional to 28,755.20, 43,118.18 and 13,159.46

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Solution

The fourth proportional to 28,755.20, 43,118.18 and 13,159.46 is: 19,732.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,755.20 : 43,118.18 = 13,159.46 : x
  2. Step 2: Convert to fraction form
    28,755.20/43,118.18 = 13,159.46/x
  3. Step 3: Cross multiply
    28,755.20x = 43,118.18 × 13,159.46
  4. Step 4: Simplify right side
    28,755.20x = 567,411,964.98
  5. Step 5: Solve for x
    x = 567,411,964.98/28,755.20
  6. Step 6: Final answer
    x = 19,732.50

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1.5x scale

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.