Home / 20,298.86-30,447.61-7,150.89

Finding the Fourth Proportional to 20,298.86, 30,447.61 and 7,150.89

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Solution

The fourth proportional to 20,298.86, 30,447.61 and 7,150.89 is: 10,726.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,298.86 : 30,447.61 = 7,150.89 : x
  2. Step 2: Convert to fraction form
    20,298.86/30,447.61 = 7,150.89/x
  3. Step 3: Cross multiply
    20,298.86x = 30,447.61 × 7,150.89
  4. Step 4: Simplify right side
    20,298.86x = 217,727,509.87
  5. Step 5: Solve for x
    x = 217,727,509.87/20,298.86
  6. Step 6: Final answer
    x = 10,726.10

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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.