Home / 28,568.01-39,421.66-15,991.05

Finding the Fourth Proportional to 28,568.01, 39,421.66 and 15,991.05

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Solution

The fourth proportional to 28,568.01, 39,421.66 and 15,991.05 is: 22,066.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,568.01 : 39,421.66 = 15,991.05 : x
  2. Step 2: Convert to fraction form
    28,568.01/39,421.66 = 15,991.05/x
  3. Step 3: Cross multiply
    28,568.01x = 39,421.66 × 15,991.05
  4. Step 4: Simplify right side
    28,568.01x = 630,393,736.14
  5. Step 5: Solve for x
    x = 630,393,736.14/28,568.01
  6. Step 6: Final answer
    x = 22,066.42

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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.