Home / 28,949.90-43,392.45-12,307.10

Finding the Fourth Proportional to 28,949.90, 43,392.45 and 12,307.10

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Solution

The fourth proportional to 28,949.90, 43,392.45 and 12,307.10 is: 18,446.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,949.90 : 43,392.45 = 12,307.10 : x
  2. Step 2: Convert to fraction form
    28,949.90/43,392.45 = 12,307.10/x
  3. Step 3: Cross multiply
    28,949.90x = 43,392.45 × 12,307.10
  4. Step 4: Simplify right side
    28,949.90x = 534,035,221.40
  5. Step 5: Solve for x
    x = 534,035,221.40/28,949.90
  6. Step 6: Final answer
    x = 18,446.88

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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.