Home / 39,256.32-54,174.42-21,351.72

Finding the Fourth Proportional to 39,256.32, 54,174.42 and 21,351.72

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Solution

The fourth proportional to 39,256.32, 54,174.42 and 21,351.72 is: 29,465.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,256.32 : 54,174.42 = 21,351.72 : x
  2. Step 2: Convert to fraction form
    39,256.32/54,174.42 = 21,351.72/x
  3. Step 3: Cross multiply
    39,256.32x = 54,174.42 × 21,351.72
  4. Step 4: Simplify right side
    39,256.32x = 1,156,717,047.00
  5. Step 5: Solve for x
    x = 1,156,717,047.00/39,256.32
  6. Step 6: Final answer
    x = 29,465.75

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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.