Home / 38,764.11-53,480.48-21,987.39

Finding the Fourth Proportional to 38,764.11, 53,480.48 and 21,987.39

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Solution

The fourth proportional to 38,764.11, 53,480.48 and 21,987.39 is: 30,334.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,764.11 : 53,480.48 = 21,987.39 : x
  2. Step 2: Convert to fraction form
    38,764.11/53,480.48 = 21,987.39/x
  3. Step 3: Cross multiply
    38,764.11x = 53,480.48 × 21,987.39
  4. Step 4: Simplify right side
    38,764.11x = 1,175,896,061.21
  5. Step 5: Solve for x
    x = 1,175,896,061.21/38,764.11
  6. Step 6: Final answer
    x = 30,334.66

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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.