Home / 17,653.36-26,428.20-13,929.52

Finding the Fourth Proportional to 17,653.36, 26,428.20 and 13,929.52

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Solution

The fourth proportional to 17,653.36, 26,428.20 and 13,929.52 is: 20,853.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,653.36 : 26,428.20 = 13,929.52 : x
  2. Step 2: Convert to fraction form
    17,653.36/26,428.20 = 13,929.52/x
  3. Step 3: Cross multiply
    17,653.36x = 26,428.20 × 13,929.52
  4. Step 4: Simplify right side
    17,653.36x = 368,132,140.46
  5. Step 5: Solve for x
    x = 368,132,140.46/17,653.36
  6. Step 6: Final answer
    x = 20,853.38

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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.