Home / 39,710.81-54,801.90-21,562.29

Finding the Fourth Proportional to 39,710.81, 54,801.90 and 21,562.29

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Solution

The fourth proportional to 39,710.81, 54,801.90 and 21,562.29 is: 29,756.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,710.81 : 54,801.90 = 21,562.29 : x
  2. Step 2: Convert to fraction form
    39,710.81/54,801.90 = 21,562.29/x
  3. Step 3: Cross multiply
    39,710.81x = 54,801.90 × 21,562.29
  4. Step 4: Simplify right side
    39,710.81x = 1,181,654,460.35
  5. Step 5: Solve for x
    x = 1,181,654,460.35/39,710.81
  6. Step 6: Final answer
    x = 29,756.49

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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.