Home / 25,299.96-34,881.50-20,745.87

Finding the Fourth Proportional to 25,299.96, 34,881.50 and 20,745.87

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Solution

The fourth proportional to 25,299.96, 34,881.50 and 20,745.87 is: 28,602.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,299.96 : 34,881.50 = 20,745.87 : x
  2. Step 2: Convert to fraction form
    25,299.96/34,881.50 = 20,745.87/x
  3. Step 3: Cross multiply
    25,299.96x = 34,881.50 × 20,745.87
  4. Step 4: Simplify right side
    25,299.96x = 723,646,960.68
  5. Step 5: Solve for x
    x = 723,646,960.68/25,299.96
  6. Step 6: Final answer
    x = 28,602.69

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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.