Home / 27,882.92-38,477.80-15,945.55

Finding the Fourth Proportional to 27,882.92, 38,477.80 and 15,945.55

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Solution

The fourth proportional to 27,882.92, 38,477.80 and 15,945.55 is: 22,004.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,882.92 : 38,477.80 = 15,945.55 : x
  2. Step 2: Convert to fraction form
    27,882.92/38,477.80 = 15,945.55/x
  3. Step 3: Cross multiply
    27,882.92x = 38,477.80 × 15,945.55
  4. Step 4: Simplify right side
    27,882.92x = 613,549,683.79
  5. Step 5: Solve for x
    x = 613,549,683.79/27,882.92
  6. Step 6: Final answer
    x = 22,004.50

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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.