Home / 27,732.75-38,271.56-15,157.77

Finding the Fourth Proportional to 27,732.75, 38,271.56 and 15,157.77

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Solution

The fourth proportional to 27,732.75, 38,271.56 and 15,157.77 is: 20,917.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,732.75 : 38,271.56 = 15,157.77 : x
  2. Step 2: Convert to fraction form
    27,732.75/38,271.56 = 15,157.77/x
  3. Step 3: Cross multiply
    27,732.75x = 38,271.56 × 15,157.77
  4. Step 4: Simplify right side
    27,732.75x = 580,111,428.23
  5. Step 5: Solve for x
    x = 580,111,428.23/27,732.75
  6. Step 6: Final answer
    x = 20,917.92

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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.