Home / 28,875.40-43,309.24-9,155.96

Finding the Fourth Proportional to 28,875.40, 43,309.24 and 9,155.96

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Solution

The fourth proportional to 28,875.40, 43,309.24 and 9,155.96 is: 13,732.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,875.40 : 43,309.24 = 9,155.96 : x
  2. Step 2: Convert to fraction form
    28,875.40/43,309.24 = 9,155.96/x
  3. Step 3: Cross multiply
    28,875.40x = 43,309.24 × 9,155.96
  4. Step 4: Simplify right side
    28,875.40x = 396,537,669.07
  5. Step 5: Solve for x
    x = 396,537,669.07/28,875.40
  6. Step 6: Final answer
    x = 13,732.72

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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.