Home / 39,138.24-58,629.60-21,564.48

Finding the Fourth Proportional to 39,138.24, 58,629.60 and 21,564.48

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Solution

The fourth proportional to 39,138.24, 58,629.60 and 21,564.48 is: 32,303.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,138.24 : 58,629.60 = 21,564.48 : x
  2. Step 2: Convert to fraction form
    39,138.24/58,629.60 = 21,564.48/x
  3. Step 3: Cross multiply
    39,138.24x = 58,629.60 × 21,564.48
  4. Step 4: Simplify right side
    39,138.24x = 1,264,316,836.61
  5. Step 5: Solve for x
    x = 1,264,316,836.61/39,138.24
  6. Step 6: Final answer
    x = 32,303.88

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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.