Home / 30,116.90-41,568.28-20,045.76

Finding the Fourth Proportional to 30,116.90, 41,568.28 and 20,045.76

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Solution

The fourth proportional to 30,116.90, 41,568.28 and 20,045.76 is: 27,667.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,116.90 : 41,568.28 = 20,045.76 : x
  2. Step 2: Convert to fraction form
    30,116.90/41,568.28 = 20,045.76/x
  3. Step 3: Cross multiply
    30,116.90x = 41,568.28 × 20,045.76
  4. Step 4: Simplify right side
    30,116.90x = 833,267,764.49
  5. Step 5: Solve for x
    x = 833,267,764.49/30,116.90
  6. Step 6: Final answer
    x = 27,667.78

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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.