Home / 28,877.11-43,315.41-9,155.16

Finding the Fourth Proportional to 28,877.11, 43,315.41 and 9,155.16

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Solution

The fourth proportional to 28,877.11, 43,315.41 and 9,155.16 is: 13,732.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,877.11 : 43,315.41 = 9,155.16 : x
  2. Step 2: Convert to fraction form
    28,877.11/43,315.41 = 9,155.16/x
  3. Step 3: Cross multiply
    28,877.11x = 43,315.41 × 9,155.16
  4. Step 4: Simplify right side
    28,877.11x = 396,559,509.02
  5. Step 5: Solve for x
    x = 396,559,509.02/28,877.11
  6. Step 6: Final answer
    x = 13,732.66

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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.