Home / 39,874.38-55,026.36-21,968.96

Finding the Fourth Proportional to 39,874.38, 55,026.36 and 21,968.96

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Solution

The fourth proportional to 39,874.38, 55,026.36 and 21,968.96 is: 30,317.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,874.38 : 55,026.36 = 21,968.96 : x
  2. Step 2: Convert to fraction form
    39,874.38/55,026.36 = 21,968.96/x
  3. Step 3: Cross multiply
    39,874.38x = 55,026.36 × 21,968.96
  4. Step 4: Simplify right side
    39,874.38x = 1,208,871,901.79
  5. Step 5: Solve for x
    x = 1,208,871,901.79/39,874.38
  6. Step 6: Final answer
    x = 30,317.01

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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.