Home / 38,418.02-53,016.64-21,422.47

Finding the Fourth Proportional to 38,418.02, 53,016.64 and 21,422.47

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Solution

The fourth proportional to 38,418.02, 53,016.64 and 21,422.47 is: 29,562.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,418.02 : 53,016.64 = 21,422.47 : x
  2. Step 2: Convert to fraction form
    38,418.02/53,016.64 = 21,422.47/x
  3. Step 3: Cross multiply
    38,418.02x = 53,016.64 × 21,422.47
  4. Step 4: Simplify right side
    38,418.02x = 1,135,747,264.60
  5. Step 5: Solve for x
    x = 1,135,747,264.60/38,418.02
  6. Step 6: Final answer
    x = 29,562.88

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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.