Home / 20,061.54-30,099.60-9,534.78

Finding the Fourth Proportional to 20,061.54, 30,099.60 and 9,534.78

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Solution

The fourth proportional to 20,061.54, 30,099.60 and 9,534.78 is: 14,305.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,061.54 : 30,099.60 = 9,534.78 : x
  2. Step 2: Convert to fraction form
    20,061.54/30,099.60 = 9,534.78/x
  3. Step 3: Cross multiply
    20,061.54x = 30,099.60 × 9,534.78
  4. Step 4: Simplify right side
    20,061.54x = 286,993,064.09
  5. Step 5: Solve for x
    x = 286,993,064.09/20,061.54
  6. Step 6: Final answer
    x = 14,305.63

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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.