Home / 28,907.85-43,358.13-12,264.78

Finding the Fourth Proportional to 28,907.85, 43,358.13 and 12,264.78

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Solution

The fourth proportional to 28,907.85, 43,358.13 and 12,264.78 is: 18,395.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,907.85 : 43,358.13 = 12,264.78 : x
  2. Step 2: Convert to fraction form
    28,907.85/43,358.13 = 12,264.78/x
  3. Step 3: Cross multiply
    28,907.85x = 43,358.13 × 12,264.78
  4. Step 4: Simplify right side
    28,907.85x = 531,777,925.66
  5. Step 5: Solve for x
    x = 531,777,925.66/28,907.85
  6. Step 6: Final answer
    x = 18,395.62

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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.