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Finding the Fourth Proportional to 29,998.40, 44,900.40 and 21,250.40

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Solution

The fourth proportional to 29,998.40, 44,900.40 and 21,250.40 is: 31,806.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,998.40 : 44,900.40 = 21,250.40 : x
  2. Step 2: Convert to fraction form
    29,998.40/44,900.40 = 21,250.40/x
  3. Step 3: Cross multiply
    29,998.40x = 44,900.40 × 21,250.40
  4. Step 4: Simplify right side
    29,998.40x = 954,151,460.16
  5. Step 5: Solve for x
    x = 954,151,460.16/29,998.40
  6. Step 6: Final answer
    x = 31,806.75

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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.