Home / 28,713.80-43,026.74-19,319.02

Finding the Fourth Proportional to 28,713.80, 43,026.74 and 19,319.02

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Solution

The fourth proportional to 28,713.80, 43,026.74 and 19,319.02 is: 28,948.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,713.80 : 43,026.74 = 19,319.02 : x
  2. Step 2: Convert to fraction form
    28,713.80/43,026.74 = 19,319.02/x
  3. Step 3: Cross multiply
    28,713.80x = 43,026.74 × 19,319.02
  4. Step 4: Simplify right side
    28,713.80x = 831,234,318.88
  5. Step 5: Solve for x
    x = 831,234,318.88/28,713.80
  6. Step 6: Final answer
    x = 28,948.95

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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.