Home / 27,790.92-38,353.66-15,851.52

Finding the Fourth Proportional to 27,790.92, 38,353.66 and 15,851.52

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Solution

The fourth proportional to 27,790.92, 38,353.66 and 15,851.52 is: 21,876.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,790.92 : 38,353.66 = 15,851.52 : x
  2. Step 2: Convert to fraction form
    27,790.92/38,353.66 = 15,851.52/x
  3. Step 3: Cross multiply
    27,790.92x = 38,353.66 × 15,851.52
  4. Step 4: Simplify right side
    27,790.92x = 607,963,808.56
  5. Step 5: Solve for x
    x = 607,963,808.56/27,790.92
  6. Step 6: Final answer
    x = 21,876.35

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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.