Home / 25,877.76-35,663.94-18,791.88

Finding the Fourth Proportional to 25,877.76, 35,663.94 and 18,791.88

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Solution

The fourth proportional to 25,877.76, 35,663.94 and 18,791.88 is: 25,898.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,877.76 : 35,663.94 = 18,791.88 : x
  2. Step 2: Convert to fraction form
    25,877.76/35,663.94 = 18,791.88/x
  3. Step 3: Cross multiply
    25,877.76x = 35,663.94 × 18,791.88
  4. Step 4: Simplify right side
    25,877.76x = 670,192,480.81
  5. Step 5: Solve for x
    x = 670,192,480.81/25,877.76
  6. Step 6: Final answer
    x = 25,898.40

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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.