Home / 28,631.46-42,951.76-8,914.56

Finding the Fourth Proportional to 28,631.46, 42,951.76 and 8,914.56

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Solution

The fourth proportional to 28,631.46, 42,951.76 and 8,914.56 is: 13,373.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,631.46 : 42,951.76 = 8,914.56 : x
  2. Step 2: Convert to fraction form
    28,631.46/42,951.76 = 8,914.56/x
  3. Step 3: Cross multiply
    28,631.46x = 42,951.76 × 8,914.56
  4. Step 4: Simplify right side
    28,631.46x = 382,896,041.63
  5. Step 5: Solve for x
    x = 382,896,041.63/28,631.46
  6. Step 6: Final answer
    x = 13,373.26

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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.