Home / 37,148.48-55,686-13,768.64

Finding the Fourth Proportional to 37,148.48, 55,686 and 13,768.64

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Solution

The fourth proportional to 37,148.48, 55,686 and 13,768.64 is: 20,639.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,148.48 : 55,686 = 13,768.64 : x
  2. Step 2: Convert to fraction form
    37,148.48/55,686 = 13,768.64/x
  3. Step 3: Cross multiply
    37,148.48x = 55,686 × 13,768.64
  4. Step 4: Simplify right side
    37,148.48x = 766,720,487.04
  5. Step 5: Solve for x
    x = 766,720,487.04/37,148.48
  6. Step 6: Final answer
    x = 20,639.35

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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.