Home / 25,609.86-38,363.55-20,353.74

Finding the Fourth Proportional to 25,609.86, 38,363.55 and 20,353.74

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Solution

The fourth proportional to 25,609.86, 38,363.55 and 20,353.74 is: 30,489.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,609.86 : 38,363.55 = 20,353.74 : x
  2. Step 2: Convert to fraction form
    25,609.86/38,363.55 = 20,353.74/x
  3. Step 3: Cross multiply
    25,609.86x = 38,363.55 × 20,353.74
  4. Step 4: Simplify right side
    25,609.86x = 780,841,722.18
  5. Step 5: Solve for x
    x = 780,841,722.18/25,609.86
  6. Step 6: Final answer
    x = 30,489.89

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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.