Home / 20,600.87-30,903.89-10,071.23

Finding the Fourth Proportional to 20,600.87, 30,903.89 and 10,071.23

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Solution

The fourth proportional to 20,600.87, 30,903.89 and 10,071.23 is: 15,108.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,600.87 : 30,903.89 = 10,071.23 : x
  2. Step 2: Convert to fraction form
    20,600.87/30,903.89 = 10,071.23/x
  3. Step 3: Cross multiply
    20,600.87x = 30,903.89 × 10,071.23
  4. Step 4: Simplify right side
    20,600.87x = 311,239,979.21
  5. Step 5: Solve for x
    x = 311,239,979.21/20,600.87
  6. Step 6: Final answer
    x = 15,108.10

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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.