Home / 39,142.22-58,661.40-21,327.18

Finding the Fourth Proportional to 39,142.22, 58,661.40 and 21,327.18

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Solution

The fourth proportional to 39,142.22, 58,661.40 and 21,327.18 is: 31,962.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,142.22 : 58,661.40 = 21,327.18 : x
  2. Step 2: Convert to fraction form
    39,142.22/58,661.40 = 21,327.18/x
  3. Step 3: Cross multiply
    39,142.22x = 58,661.40 × 21,327.18
  4. Step 4: Simplify right side
    39,142.22x = 1,251,082,236.85
  5. Step 5: Solve for x
    x = 1,251,082,236.85/39,142.22
  6. Step 6: Final answer
    x = 31,962.48

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1.5x scale

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.