Home / 28,810.20-43,215.30-25,699.80

Finding the Fourth Proportional to 28,810.20, 43,215.30 and 25,699.80

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Solution

The fourth proportional to 28,810.20, 43,215.30 and 25,699.80 is: 38,549.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,810.20 : 43,215.30 = 25,699.80 : x
  2. Step 2: Convert to fraction form
    28,810.20/43,215.30 = 25,699.80/x
  3. Step 3: Cross multiply
    28,810.20x = 43,215.30 × 25,699.80
  4. Step 4: Simplify right side
    28,810.20x = 1,110,624,566.94
  5. Step 5: Solve for x
    x = 1,110,624,566.94/28,810.20
  6. Step 6: Final answer
    x = 38,549.70

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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.