Home / 28,723.14-39,633.60-16,145.46

Finding the Fourth Proportional to 28,723.14, 39,633.60 and 16,145.46

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Solution

The fourth proportional to 28,723.14, 39,633.60 and 16,145.46 is: 22,278.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,723.14 : 39,633.60 = 16,145.46 : x
  2. Step 2: Convert to fraction form
    28,723.14/39,633.60 = 16,145.46/x
  3. Step 3: Cross multiply
    28,723.14x = 39,633.60 × 16,145.46
  4. Step 4: Simplify right side
    28,723.14x = 639,902,703.46
  5. Step 5: Solve for x
    x = 639,902,703.46/28,723.14
  6. Step 6: Final answer
    x = 22,278.30

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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.