Home / 39,331.64-54,277.40-21,426.66

Finding the Fourth Proportional to 39,331.64, 54,277.40 and 21,426.66

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Solution

The fourth proportional to 39,331.64, 54,277.40 and 21,426.66 is: 29,568.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,331.64 : 54,277.40 = 21,426.66 : x
  2. Step 2: Convert to fraction form
    39,331.64/54,277.40 = 21,426.66/x
  3. Step 3: Cross multiply
    39,331.64x = 54,277.40 × 21,426.66
  4. Step 4: Simplify right side
    39,331.64x = 1,162,983,449.05
  5. Step 5: Solve for x
    x = 1,162,983,449.05/39,331.64
  6. Step 6: Final answer
    x = 29,568.65

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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.