Home / 39,347.81-54,298.39-21,442.43

Finding the Fourth Proportional to 39,347.81, 54,298.39 and 21,442.43

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Solution

The fourth proportional to 39,347.81, 54,298.39 and 21,442.43 is: 29,589.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,347.81 : 54,298.39 = 21,442.43 : x
  2. Step 2: Convert to fraction form
    39,347.81/54,298.39 = 21,442.43/x
  3. Step 3: Cross multiply
    39,347.81x = 54,298.39 × 21,442.43
  4. Step 4: Simplify right side
    39,347.81x = 1,164,289,426.69
  5. Step 5: Solve for x
    x = 1,164,289,426.69/39,347.81
  6. Step 6: Final answer
    x = 29,589.69

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.