Home / 20,923.86-31,390.62-6,133.92

Finding the Fourth Proportional to 20,923.86, 31,390.62 and 6,133.92

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Solution

The fourth proportional to 20,923.86, 31,390.62 and 6,133.92 is: 9,202.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,923.86 : 31,390.62 = 6,133.92 : x
  2. Step 2: Convert to fraction form
    20,923.86/31,390.62 = 6,133.92/x
  3. Step 3: Cross multiply
    20,923.86x = 31,390.62 × 6,133.92
  4. Step 4: Simplify right side
    20,923.86x = 192,547,551.83
  5. Step 5: Solve for x
    x = 192,547,551.83/20,923.86
  6. Step 6: Final answer
    x = 9,202.30

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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.