Home / 39,398.42-54,370.22-21,493.49

Finding the Fourth Proportional to 39,398.42, 54,370.22 and 21,493.49

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Solution

The fourth proportional to 39,398.42, 54,370.22 and 21,493.49 is: 29,661.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,398.42 : 54,370.22 = 21,493.49 : x
  2. Step 2: Convert to fraction form
    39,398.42/54,370.22 = 21,493.49/x
  3. Step 3: Cross multiply
    39,398.42x = 54,370.22 × 21,493.49
  4. Step 4: Simplify right side
    39,398.42x = 1,168,605,400.55
  5. Step 5: Solve for x
    x = 1,168,605,400.55/39,398.42
  6. Step 6: Final answer
    x = 29,661.22

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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.