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Finding the Fourth Proportional to 19,900.01, 29,850.15 and 9,480.17

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Solution

The fourth proportional to 19,900.01, 29,850.15 and 9,480.17 is: 14,220.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,900.01 : 29,850.15 = 9,480.17 : x
  2. Step 2: Convert to fraction form
    19,900.01/29,850.15 = 9,480.17/x
  3. Step 3: Cross multiply
    19,900.01x = 29,850.15 × 9,480.17
  4. Step 4: Simplify right side
    19,900.01x = 282,984,496.53
  5. Step 5: Solve for x
    x = 282,984,496.53/19,900.01
  6. Step 6: Final answer
    x = 14,220.32

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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.