Home / 38,958.99-58,417.68-20,220.15

Finding the Fourth Proportional to 38,958.99, 58,417.68 and 20,220.15

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Solution

The fourth proportional to 38,958.99, 58,417.68 and 20,220.15 is: 30,319.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,958.99 : 58,417.68 = 20,220.15 : x
  2. Step 2: Convert to fraction form
    38,958.99/58,417.68 = 20,220.15/x
  3. Step 3: Cross multiply
    38,958.99x = 58,417.68 × 20,220.15
  4. Step 4: Simplify right side
    38,958.99x = 1,181,214,252.25
  5. Step 5: Solve for x
    x = 1,181,214,252.25/38,958.99
  6. Step 6: Final answer
    x = 30,319.43

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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.