Home / 18,633.12-25,754.80-16,378.08

Finding the Fourth Proportional to 18,633.12, 25,754.80 and 16,378.08

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Solution

The fourth proportional to 18,633.12, 25,754.80 and 16,378.08 is: 22,637.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,633.12 : 25,754.80 = 16,378.08 : x
  2. Step 2: Convert to fraction form
    18,633.12/25,754.80 = 16,378.08/x
  3. Step 3: Cross multiply
    18,633.12x = 25,754.80 × 16,378.08
  4. Step 4: Simplify right side
    18,633.12x = 421,814,174.78
  5. Step 5: Solve for x
    x = 421,814,174.78/18,633.12
  6. Step 6: Final answer
    x = 22,637.87

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.