Home / 28,687.80-43,031.70-25,116.60

Finding the Fourth Proportional to 28,687.80, 43,031.70 and 25,116.60

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Solution

The fourth proportional to 28,687.80, 43,031.70 and 25,116.60 is: 37,674.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,687.80 : 43,031.70 = 25,116.60 : x
  2. Step 2: Convert to fraction form
    28,687.80/43,031.70 = 25,116.60/x
  3. Step 3: Cross multiply
    28,687.80x = 43,031.70 × 25,116.60
  4. Step 4: Simplify right side
    28,687.80x = 1,080,809,996.22
  5. Step 5: Solve for x
    x = 1,080,809,996.22/28,687.80
  6. Step 6: Final answer
    x = 37,674.90

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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.