Home / 28,701.68-43,055.82-7,642.02

Finding the Fourth Proportional to 28,701.68, 43,055.82 and 7,642.02

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Solution

The fourth proportional to 28,701.68, 43,055.82 and 7,642.02 is: 11,463.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,701.68 : 43,055.82 = 7,642.02 : x
  2. Step 2: Convert to fraction form
    28,701.68/43,055.82 = 7,642.02/x
  3. Step 3: Cross multiply
    28,701.68x = 43,055.82 × 7,642.02
  4. Step 4: Simplify right side
    28,701.68x = 329,033,437.56
  5. Step 5: Solve for x
    x = 329,033,437.56/28,701.68
  6. Step 6: Final answer
    x = 11,463.91

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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.