Home / 39,174.95-54,061.26-21,269.81

Finding the Fourth Proportional to 39,174.95, 54,061.26 and 21,269.81

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Solution

The fourth proportional to 39,174.95, 54,061.26 and 21,269.81 is: 29,352.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,174.95 : 54,061.26 = 21,269.81 : x
  2. Step 2: Convert to fraction form
    39,174.95/54,061.26 = 21,269.81/x
  3. Step 3: Cross multiply
    39,174.95x = 54,061.26 × 21,269.81
  4. Step 4: Simplify right side
    39,174.95x = 1,149,872,728.56
  5. Step 5: Solve for x
    x = 1,149,872,728.56/39,174.95
  6. Step 6: Final answer
    x = 29,352.24

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.