Home / 39,229.84-54,138.25-21,326.05

Finding the Fourth Proportional to 39,229.84, 54,138.25 and 21,326.05

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Solution

The fourth proportional to 39,229.84, 54,138.25 and 21,326.05 is: 29,430.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,229.84 : 54,138.25 = 21,326.05 : x
  2. Step 2: Convert to fraction form
    39,229.84/54,138.25 = 21,326.05/x
  3. Step 3: Cross multiply
    39,229.84x = 54,138.25 × 21,326.05
  4. Step 4: Simplify right side
    39,229.84x = 1,154,555,026.41
  5. Step 5: Solve for x
    x = 1,154,555,026.41/39,229.84
  6. Step 6: Final answer
    x = 29,430.53

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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.