Home / 20,225.96-30,334.14-9,125.80

Finding the Fourth Proportional to 20,225.96, 30,334.14 and 9,125.80

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Solution

The fourth proportional to 20,225.96, 30,334.14 and 9,125.80 is: 13,686.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,225.96 : 30,334.14 = 9,125.80 : x
  2. Step 2: Convert to fraction form
    20,225.96/30,334.14 = 9,125.80/x
  3. Step 3: Cross multiply
    20,225.96x = 30,334.14 × 9,125.80
  4. Step 4: Simplify right side
    20,225.96x = 276,823,294.81
  5. Step 5: Solve for x
    x = 276,823,294.81/20,225.96
  6. Step 6: Final answer
    x = 13,686.53

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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.