Home / 25,499.85-38,260.32-20,289.93

Finding the Fourth Proportional to 25,499.85, 38,260.32 and 20,289.93

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Solution

The fourth proportional to 25,499.85, 38,260.32 and 20,289.93 is: 30,443.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,499.85 : 38,260.32 = 20,289.93 : x
  2. Step 2: Convert to fraction form
    25,499.85/38,260.32 = 20,289.93/x
  3. Step 3: Cross multiply
    25,499.85x = 38,260.32 × 20,289.93
  4. Step 4: Simplify right side
    25,499.85x = 776,299,214.58
  5. Step 5: Solve for x
    x = 776,299,214.58/25,499.85
  6. Step 6: Final answer
    x = 30,443.29

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.