Home / 28,074.60-38,758.71-19,473.31

Finding the Fourth Proportional to 28,074.60, 38,758.71 and 19,473.31

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Solution

The fourth proportional to 28,074.60, 38,758.71 and 19,473.31 is: 26,884.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,074.60 : 38,758.71 = 19,473.31 : x
  2. Step 2: Convert to fraction form
    28,074.60/38,758.71 = 19,473.31/x
  3. Step 3: Cross multiply
    28,074.60x = 38,758.71 × 19,473.31
  4. Step 4: Simplify right side
    28,074.60x = 754,760,278.13
  5. Step 5: Solve for x
    x = 754,760,278.13/28,074.60
  6. Step 6: Final answer
    x = 26,884.10

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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.