Home / 39,615.38-54,667.09-21,710.42

Finding the Fourth Proportional to 39,615.38, 54,667.09 and 21,710.42

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Solution

The fourth proportional to 39,615.38, 54,667.09 and 21,710.42 is: 29,959.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,615.38 : 54,667.09 = 21,710.42 : x
  2. Step 2: Convert to fraction form
    39,615.38/54,667.09 = 21,710.42/x
  3. Step 3: Cross multiply
    39,615.38x = 54,667.09 × 21,710.42
  4. Step 4: Simplify right side
    39,615.38x = 1,186,845,484.08
  5. Step 5: Solve for x
    x = 1,186,845,484.08/39,615.38
  6. Step 6: Final answer
    x = 29,959.21

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1.5x scale

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.