Home / 39,723.09-54,818.81-21,574.54

Finding the Fourth Proportional to 39,723.09, 54,818.81 and 21,574.54

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Solution

The fourth proportional to 39,723.09, 54,818.81 and 21,574.54 is: 29,773.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,723.09 : 54,818.81 = 21,574.54 : x
  2. Step 2: Convert to fraction form
    39,723.09/54,818.81 = 21,574.54/x
  3. Step 3: Cross multiply
    39,723.09x = 54,818.81 × 21,574.54
  4. Step 4: Simplify right side
    39,723.09x = 1,182,690,609.10
  5. Step 5: Solve for x
    x = 1,182,690,609.10/39,723.09
  6. Step 6: Final answer
    x = 29,773.38

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1.5x scale

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.