Home / 30,220.28-45,304.50-11,742.20

Finding the Fourth Proportional to 30,220.28, 45,304.50 and 11,742.20

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Solution

The fourth proportional to 30,220.28, 45,304.50 and 11,742.20 is: 17,603.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,220.28 : 45,304.50 = 11,742.20 : x
  2. Step 2: Convert to fraction form
    30,220.28/45,304.50 = 11,742.20/x
  3. Step 3: Cross multiply
    30,220.28x = 45,304.50 × 11,742.20
  4. Step 4: Simplify right side
    30,220.28x = 531,974,499.90
  5. Step 5: Solve for x
    x = 531,974,499.90/30,220.28
  6. Step 6: Final answer
    x = 17,603.23

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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.