Home / 28,918.38-43,376.85-13,335.99

Finding the Fourth Proportional to 28,918.38, 43,376.85 and 13,335.99

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Solution

The fourth proportional to 28,918.38, 43,376.85 and 13,335.99 is: 20,003.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,918.38 : 43,376.85 = 13,335.99 : x
  2. Step 2: Convert to fraction form
    28,918.38/43,376.85 = 13,335.99/x
  3. Step 3: Cross multiply
    28,918.38x = 43,376.85 × 13,335.99
  4. Step 4: Simplify right side
    28,918.38x = 578,473,237.83
  5. Step 5: Solve for x
    x = 578,473,237.83/28,918.38
  6. Step 6: Final answer
    x = 20,003.65

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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.