Home / 38,185.64-57,264.72-13,218.90

Finding the Fourth Proportional to 38,185.64, 57,264.72 and 13,218.90

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Solution

The fourth proportional to 38,185.64, 57,264.72 and 13,218.90 is: 19,823.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,185.64 : 57,264.72 = 13,218.90 : x
  2. Step 2: Convert to fraction form
    38,185.64/57,264.72 = 13,218.90/x
  3. Step 3: Cross multiply
    38,185.64x = 57,264.72 × 13,218.90
  4. Step 4: Simplify right side
    38,185.64x = 756,976,607.21
  5. Step 5: Solve for x
    x = 756,976,607.21/38,185.64
  6. Step 6: Final answer
    x = 19,823.59

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.