Home / 39,472.09-54,475.23-21,569.79

Finding the Fourth Proportional to 39,472.09, 54,475.23 and 21,569.79

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Solution

The fourth proportional to 39,472.09, 54,475.23 and 21,569.79 is: 29,768.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,472.09 : 54,475.23 = 21,569.79 : x
  2. Step 2: Convert to fraction form
    39,472.09/54,475.23 = 21,569.79/x
  3. Step 3: Cross multiply
    39,472.09x = 54,475.23 × 21,569.79
  4. Step 4: Simplify right side
    39,472.09x = 1,175,019,271.30
  5. Step 5: Solve for x
    x = 1,175,019,271.30/39,472.09
  6. Step 6: Final answer
    x = 29,768.36

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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.