Home / 13,904.32-20,857.84-4,040.92

Finding the Fourth Proportional to 13,904.32, 20,857.84 and 4,040.92

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Solution

The fourth proportional to 13,904.32, 20,857.84 and 4,040.92 is: 6,061.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,904.32 : 20,857.84 = 4,040.92 : x
  2. Step 2: Convert to fraction form
    13,904.32/20,857.84 = 4,040.92/x
  3. Step 3: Cross multiply
    13,904.32x = 20,857.84 × 4,040.92
  4. Step 4: Simplify right side
    13,904.32x = 84,284,862.81
  5. Step 5: Solve for x
    x = 84,284,862.81/13,904.32
  6. Step 6: Final answer
    x = 6,061.78

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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.