Home / 39,256.86-54,174.72-21,351.99

Finding the Fourth Proportional to 39,256.86, 54,174.72 and 21,351.99

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Solution

The fourth proportional to 39,256.86, 54,174.72 and 21,351.99 is: 29,465.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,256.86 : 54,174.72 = 21,351.99 : x
  2. Step 2: Convert to fraction form
    39,256.86/54,174.72 = 21,351.99/x
  3. Step 3: Cross multiply
    39,256.86x = 54,174.72 × 21,351.99
  4. Step 4: Simplify right side
    39,256.86x = 1,156,738,079.69
  5. Step 5: Solve for x
    x = 1,156,738,079.69/39,256.86
  6. Step 6: Final answer
    x = 29,465.88

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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.