Home / 28,560.62-39,415.47-15,989.42

Finding the Fourth Proportional to 28,560.62, 39,415.47 and 15,989.42

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Solution

The fourth proportional to 28,560.62, 39,415.47 and 15,989.42 is: 22,066.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,560.62 : 39,415.47 = 15,989.42 : x
  2. Step 2: Convert to fraction form
    28,560.62/39,415.47 = 15,989.42/x
  3. Step 3: Cross multiply
    28,560.62x = 39,415.47 × 15,989.42
  4. Step 4: Simplify right side
    28,560.62x = 630,230,504.33
  5. Step 5: Solve for x
    x = 630,230,504.33/28,560.62
  6. Step 6: Final answer
    x = 22,066.42

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Double scale
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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.