Home / 30,438.12-42,016.32-27,245.79

Finding the Fourth Proportional to 30,438.12, 42,016.32 and 27,245.79

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Solution

The fourth proportional to 30,438.12, 42,016.32 and 27,245.79 is: 37,609.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,438.12 : 42,016.32 = 27,245.79 : x
  2. Step 2: Convert to fraction form
    30,438.12/42,016.32 = 27,245.79/x
  3. Step 3: Cross multiply
    30,438.12x = 42,016.32 × 27,245.79
  4. Step 4: Simplify right side
    30,438.12x = 1,144,767,831.29
  5. Step 5: Solve for x
    x = 1,144,767,831.29/30,438.12
  6. Step 6: Final answer
    x = 37,609.68

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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.