Home / 27,820.31-38,392.04-15,244.79

Finding the Fourth Proportional to 27,820.31, 38,392.04 and 15,244.79

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Solution

The fourth proportional to 27,820.31, 38,392.04 and 15,244.79 is: 21,037.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,820.31 : 38,392.04 = 15,244.79 : x
  2. Step 2: Convert to fraction form
    27,820.31/38,392.04 = 15,244.79/x
  3. Step 3: Cross multiply
    27,820.31x = 38,392.04 × 15,244.79
  4. Step 4: Simplify right side
    27,820.31x = 585,278,607.23
  5. Step 5: Solve for x
    x = 585,278,607.23/27,820.31
  6. Step 6: Final answer
    x = 21,037.82

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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.