Home / 28,153.29-42,242.19-17,647.39

Finding the Fourth Proportional to 28,153.29, 42,242.19 and 17,647.39

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Solution

The fourth proportional to 28,153.29, 42,242.19 and 17,647.39 is: 26,478.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,153.29 : 42,242.19 = 17,647.39 : x
  2. Step 2: Convert to fraction form
    28,153.29/42,242.19 = 17,647.39/x
  3. Step 3: Cross multiply
    28,153.29x = 42,242.19 × 17,647.39
  4. Step 4: Simplify right side
    28,153.29x = 745,464,401.38
  5. Step 5: Solve for x
    x = 745,464,401.38/28,153.29
  6. Step 6: Final answer
    x = 26,478.77

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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.