Home / 38,768.81-58,162.03-13,811.49

Finding the Fourth Proportional to 38,768.81, 58,162.03 and 13,811.49

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Solution

The fourth proportional to 38,768.81, 58,162.03 and 13,811.49 is: 20,720.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,768.81 : 58,162.03 = 13,811.49 : x
  2. Step 2: Convert to fraction form
    38,768.81/58,162.03 = 13,811.49/x
  3. Step 3: Cross multiply
    38,768.81x = 58,162.03 × 13,811.49
  4. Step 4: Simplify right side
    38,768.81x = 803,304,261.20
  5. Step 5: Solve for x
    x = 803,304,261.20/38,768.81
  6. Step 6: Final answer
    x = 20,720.38

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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.