Home / 37,129.60-55,643.86-20,464.66

Finding the Fourth Proportional to 37,129.60, 55,643.86 and 20,464.66

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Solution

The fourth proportional to 37,129.60, 55,643.86 and 20,464.66 is: 30,669.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,129.60 : 55,643.86 = 20,464.66 : x
  2. Step 2: Convert to fraction form
    37,129.60/55,643.86 = 20,464.66/x
  3. Step 3: Cross multiply
    37,129.60x = 55,643.86 × 20,464.66
  4. Step 4: Simplify right side
    37,129.60x = 1,138,732,675.99
  5. Step 5: Solve for x
    x = 1,138,732,675.99/37,129.60
  6. Step 6: Final answer
    x = 30,669.13

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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.