Home / 26,420.78-39,647.31-14,569.48

Finding the Fourth Proportional to 26,420.78, 39,647.31 and 14,569.48

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Solution

The fourth proportional to 26,420.78, 39,647.31 and 14,569.48 is: 21,863.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,420.78 : 39,647.31 = 14,569.48 : x
  2. Step 2: Convert to fraction form
    26,420.78/39,647.31 = 14,569.48/x
  3. Step 3: Cross multiply
    26,420.78x = 39,647.31 × 14,569.48
  4. Step 4: Simplify right side
    26,420.78x = 577,640,802.24
  5. Step 5: Solve for x
    x = 577,640,802.24/26,420.78
  6. Step 6: Final answer
    x = 21,863.12

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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.