Home / 38,154.25-52,653.41-21,387.25

Finding the Fourth Proportional to 38,154.25, 52,653.41 and 21,387.25

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Solution

The fourth proportional to 38,154.25, 52,653.41 and 21,387.25 is: 29,514.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,154.25 : 52,653.41 = 21,387.25 : x
  2. Step 2: Convert to fraction form
    38,154.25/52,653.41 = 21,387.25/x
  3. Step 3: Cross multiply
    38,154.25x = 52,653.41 × 21,387.25
  4. Step 4: Simplify right side
    38,154.25x = 1,126,111,643.02
  5. Step 5: Solve for x
    x = 1,126,111,643.02/38,154.25
  6. Step 6: Final answer
    x = 29,514.71

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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.