Home / 51,530.46-71,116.34-28,869

Finding the Fourth Proportional to 51,530.46, 71,116.34 and 28,869

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Solution

The fourth proportional to 51,530.46, 71,116.34 and 28,869 is: 39,841.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,530.46 : 71,116.34 = 28,869 : x
  2. Step 2: Convert to fraction form
    51,530.46/71,116.34 = 28,869/x
  3. Step 3: Cross multiply
    51,530.46x = 71,116.34 × 28,869
  4. Step 4: Simplify right side
    51,530.46x = 2,053,057,475.12
  5. Step 5: Solve for x
    x = 2,053,057,475.12/51,530.46
  6. Step 6: Final answer
    x = 39,841.63

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.