Home / 27,638.42-38,140.00-15,062.90

Finding the Fourth Proportional to 27,638.42, 38,140.00 and 15,062.90

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Solution

The fourth proportional to 27,638.42, 38,140.00 and 15,062.90 is: 20,786.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,638.42 : 38,140.00 = 15,062.90 : x
  2. Step 2: Convert to fraction form
    27,638.42/38,140.00 = 15,062.90/x
  3. Step 3: Cross multiply
    27,638.42x = 38,140.00 × 15,062.90
  4. Step 4: Simplify right side
    27,638.42x = 574,498,777.64
  5. Step 5: Solve for x
    x = 574,498,777.64/27,638.42
  6. Step 6: Final answer
    x = 20,786.24

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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.