Home / 28,428.78-39,231.98-16,492.33

Finding the Fourth Proportional to 28,428.78, 39,231.98 and 16,492.33

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Solution

The fourth proportional to 28,428.78, 39,231.98 and 16,492.33 is: 22,759.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,428.78 : 39,231.98 = 16,492.33 : x
  2. Step 2: Convert to fraction form
    28,428.78/39,231.98 = 16,492.33/x
  3. Step 3: Cross multiply
    28,428.78x = 39,231.98 × 16,492.33
  4. Step 4: Simplify right side
    28,428.78x = 647,026,760.71
  5. Step 5: Solve for x
    x = 647,026,760.71/28,428.78
  6. Step 6: Final answer
    x = 22,759.57

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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.