Home / 28,131.03-42,217.31-13,340.00

Finding the Fourth Proportional to 28,131.03, 42,217.31 and 13,340.00

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Solution

The fourth proportional to 28,131.03, 42,217.31 and 13,340.00 is: 20,019.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,131.03 : 42,217.31 = 13,340.00 : x
  2. Step 2: Convert to fraction form
    28,131.03/42,217.31 = 13,340.00/x
  3. Step 3: Cross multiply
    28,131.03x = 42,217.31 × 13,340.00
  4. Step 4: Simplify right side
    28,131.03x = 563,178,954.24
  5. Step 5: Solve for x
    x = 563,178,954.24/28,131.03
  6. Step 6: Final answer
    x = 20,019.85

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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.