Home / 28,066.62-42,069.80-13,998.86

Finding the Fourth Proportional to 28,066.62, 42,069.80 and 13,998.86

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Solution

The fourth proportional to 28,066.62, 42,069.80 and 13,998.86 is: 20,983.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,066.62 : 42,069.80 = 13,998.86 : x
  2. Step 2: Convert to fraction form
    28,066.62/42,069.80 = 13,998.86/x
  3. Step 3: Cross multiply
    28,066.62x = 42,069.80 × 13,998.86
  4. Step 4: Simplify right side
    28,066.62x = 588,928,960.08
  5. Step 5: Solve for x
    x = 588,928,960.08/28,066.62
  6. Step 6: Final answer
    x = 20,983.25

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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.