Home / 28,754.19-43,113.06-12,125.70

Finding the Fourth Proportional to 28,754.19, 43,113.06 and 12,125.70

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Solution

The fourth proportional to 28,754.19, 43,113.06 and 12,125.70 is: 18,180.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,754.19 : 43,113.06 = 12,125.70 : x
  2. Step 2: Convert to fraction form
    28,754.19/43,113.06 = 12,125.70/x
  3. Step 3: Cross multiply
    28,754.19x = 43,113.06 × 12,125.70
  4. Step 4: Simplify right side
    28,754.19x = 522,776,031.64
  5. Step 5: Solve for x
    x = 522,776,031.64/28,754.19
  6. Step 6: Final answer
    x = 18,180.86

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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.