Home / 20,542.88-30,827.08-13,152.65

Finding the Fourth Proportional to 20,542.88, 30,827.08 and 13,152.65

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Solution

The fourth proportional to 20,542.88, 30,827.08 and 13,152.65 is: 19,737.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,542.88 : 30,827.08 = 13,152.65 : x
  2. Step 2: Convert to fraction form
    20,542.88/30,827.08 = 13,152.65/x
  3. Step 3: Cross multiply
    20,542.88x = 30,827.08 × 13,152.65
  4. Step 4: Simplify right side
    20,542.88x = 405,457,606.74
  5. Step 5: Solve for x
    x = 405,457,606.74/20,542.88
  6. Step 6: Final answer
    x = 19,737.13

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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.