Home / 28,147.06-38,826.01-18,587.03

Finding the Fourth Proportional to 28,147.06, 38,826.01 and 18,587.03

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Solution

The fourth proportional to 28,147.06, 38,826.01 and 18,587.03 is: 25,638.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,147.06 : 38,826.01 = 18,587.03 : x
  2. Step 2: Convert to fraction form
    28,147.06/38,826.01 = 18,587.03/x
  3. Step 3: Cross multiply
    28,147.06x = 38,826.01 × 18,587.03
  4. Step 4: Simplify right side
    28,147.06x = 721,660,212.65
  5. Step 5: Solve for x
    x = 721,660,212.65/28,147.06
  6. Step 6: Final answer
    x = 25,638.92

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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.