Home / 20,187.83-30,253.97-10,306.37

Finding the Fourth Proportional to 20,187.83, 30,253.97 and 10,306.37

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Solution

The fourth proportional to 20,187.83, 30,253.97 and 10,306.37 is: 15,445.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,187.83 : 30,253.97 = 10,306.37 : x
  2. Step 2: Convert to fraction form
    20,187.83/30,253.97 = 10,306.37/x
  3. Step 3: Cross multiply
    20,187.83x = 30,253.97 × 10,306.37
  4. Step 4: Simplify right side
    20,187.83x = 311,808,710.19
  5. Step 5: Solve for x
    x = 311,808,710.19/20,187.83
  6. Step 6: Final answer
    x = 15,445.38

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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.