Home / 20,193.30-30,253.95-9,782.10

Finding the Fourth Proportional to 20,193.30, 30,253.95 and 9,782.10

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Solution

The fourth proportional to 20,193.30, 30,253.95 and 9,782.10 is: 14,655.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,193.30 : 30,253.95 = 9,782.10 : x
  2. Step 2: Convert to fraction form
    20,193.30/30,253.95 = 9,782.10/x
  3. Step 3: Cross multiply
    20,193.30x = 30,253.95 × 9,782.10
  4. Step 4: Simplify right side
    20,193.30x = 295,947,164.30
  5. Step 5: Solve for x
    x = 295,947,164.30/20,193.30
  6. Step 6: Final answer
    x = 14,655.71

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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.