Home / 20,399.04-30,595.05-5,605.47

Finding the Fourth Proportional to 20,399.04, 30,595.05 and 5,605.47

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Solution

The fourth proportional to 20,399.04, 30,595.05 and 5,605.47 is: 8,407.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,399.04 : 30,595.05 = 5,605.47 : x
  2. Step 2: Convert to fraction form
    20,399.04/30,595.05 = 5,605.47/x
  3. Step 3: Cross multiply
    20,399.04x = 30,595.05 × 5,605.47
  4. Step 4: Simplify right side
    20,399.04x = 171,499,634.92
  5. Step 5: Solve for x
    x = 171,499,634.92/20,399.04
  6. Step 6: Final answer
    x = 8,407.24

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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.