Home / 35,721.78-53,578.55-9,428.57

Finding the Fourth Proportional to 35,721.78, 53,578.55 and 9,428.57

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Solution

The fourth proportional to 35,721.78, 53,578.55 and 9,428.57 is: 14,141.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,721.78 : 53,578.55 = 9,428.57 : x
  2. Step 2: Convert to fraction form
    35,721.78/53,578.55 = 9,428.57/x
  3. Step 3: Cross multiply
    35,721.78x = 53,578.55 × 9,428.57
  4. Step 4: Simplify right side
    35,721.78x = 505,169,062.03
  5. Step 5: Solve for x
    x = 505,169,062.03/35,721.78
  6. Step 6: Final answer
    x = 14,141.77

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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.