Home / 30,127.38-45,189.09-10,406.22

Finding the Fourth Proportional to 30,127.38, 45,189.09 and 10,406.22

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Solution

The fourth proportional to 30,127.38, 45,189.09 and 10,406.22 is: 15,608.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,127.38 : 45,189.09 = 10,406.22 : x
  2. Step 2: Convert to fraction form
    30,127.38/45,189.09 = 10,406.22/x
  3. Step 3: Cross multiply
    30,127.38x = 45,189.09 × 10,406.22
  4. Step 4: Simplify right side
    30,127.38x = 470,247,612.14
  5. Step 5: Solve for x
    x = 470,247,612.14/30,127.38
  6. Step 6: Final answer
    x = 15,608.65

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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.