Home / 28,756.19-43,134.29-9,036.47

Finding the Fourth Proportional to 28,756.19, 43,134.29 and 9,036.47

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Solution

The fourth proportional to 28,756.19, 43,134.29 and 9,036.47 is: 13,554.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,756.19 : 43,134.29 = 9,036.47 : x
  2. Step 2: Convert to fraction form
    28,756.19/43,134.29 = 9,036.47/x
  3. Step 3: Cross multiply
    28,756.19x = 43,134.29 × 9,036.47
  4. Step 4: Simplify right side
    28,756.19x = 389,781,456.70
  5. Step 5: Solve for x
    x = 389,781,456.70/28,756.19
  6. Step 6: Final answer
    x = 13,554.70

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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.