Home / 39,161.32-54,041.17-21,255.94

Finding the Fourth Proportional to 39,161.32, 54,041.17 and 21,255.94

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Solution

The fourth proportional to 39,161.32, 54,041.17 and 21,255.94 is: 29,332.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,161.32 : 54,041.17 = 21,255.94 : x
  2. Step 2: Convert to fraction form
    39,161.32/54,041.17 = 21,255.94/x
  3. Step 3: Cross multiply
    39,161.32x = 54,041.17 × 21,255.94
  4. Step 4: Simplify right side
    39,161.32x = 1,148,695,867.05
  5. Step 5: Solve for x
    x = 1,148,695,867.05/39,161.32
  6. Step 6: Final answer
    x = 29,332.41

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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.