Home / 28,699.78-43,058.17-13,718.11

Finding the Fourth Proportional to 28,699.78, 43,058.17 and 13,718.11

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Solution

The fourth proportional to 28,699.78, 43,058.17 and 13,718.11 is: 20,581.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,699.78 : 43,058.17 = 13,718.11 : x
  2. Step 2: Convert to fraction form
    28,699.78/43,058.17 = 13,718.11/x
  3. Step 3: Cross multiply
    28,699.78x = 43,058.17 × 13,718.11
  4. Step 4: Simplify right side
    28,699.78x = 590,676,497.17
  5. Step 5: Solve for x
    x = 590,676,497.17/28,699.78
  6. Step 6: Final answer
    x = 20,581.22

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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.