Home / 35,916.80-53,849.60-13,721.60

Finding the Fourth Proportional to 35,916.80, 53,849.60 and 13,721.60

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Solution

The fourth proportional to 35,916.80, 53,849.60 and 13,721.60 is: 20,572.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,916.80 : 53,849.60 = 13,721.60 : x
  2. Step 2: Convert to fraction form
    35,916.80/53,849.60 = 13,721.60/x
  3. Step 3: Cross multiply
    35,916.80x = 53,849.60 × 13,721.60
  4. Step 4: Simplify right side
    35,916.80x = 738,902,671.36
  5. Step 5: Solve for x
    x = 738,902,671.36/35,916.80
  6. Step 6: Final answer
    x = 20,572.62

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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.