Home / 27,636.84-38,139.30-15,062.12

Finding the Fourth Proportional to 27,636.84, 38,139.30 and 15,062.12

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Solution

The fourth proportional to 27,636.84, 38,139.30 and 15,062.12 is: 20,785.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,636.84 : 38,139.30 = 15,062.12 : x
  2. Step 2: Convert to fraction form
    27,636.84/38,139.30 = 15,062.12/x
  3. Step 3: Cross multiply
    27,636.84x = 38,139.30 × 15,062.12
  4. Step 4: Simplify right side
    27,636.84x = 574,458,713.32
  5. Step 5: Solve for x
    x = 574,458,713.32/27,636.84
  6. Step 6: Final answer
    x = 20,785.98

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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.