Home / 28,325.33-39,088.05-15,578.42

Finding the Fourth Proportional to 28,325.33, 39,088.05 and 15,578.42

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Solution

The fourth proportional to 28,325.33, 39,088.05 and 15,578.42 is: 21,497.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,325.33 : 39,088.05 = 15,578.42 : x
  2. Step 2: Convert to fraction form
    28,325.33/39,088.05 = 15,578.42/x
  3. Step 3: Cross multiply
    28,325.33x = 39,088.05 × 15,578.42
  4. Step 4: Simplify right side
    28,325.33x = 608,930,059.88
  5. Step 5: Solve for x
    x = 608,930,059.88/28,325.33
  6. Step 6: Final answer
    x = 21,497.73

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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.