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Finding the Fourth Proportional to 30,002.40, 44,906.40 and 21,254.40

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Solution

The fourth proportional to 30,002.40, 44,906.40 and 21,254.40 is: 31,812.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,002.40 : 44,906.40 = 21,254.40 : x
  2. Step 2: Convert to fraction form
    30,002.40/44,906.40 = 21,254.40/x
  3. Step 3: Cross multiply
    30,002.40x = 44,906.40 × 21,254.40
  4. Step 4: Simplify right side
    30,002.40x = 954,458,588.16
  5. Step 5: Solve for x
    x = 954,458,588.16/30,002.40
  6. Step 6: Final answer
    x = 31,812.74

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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.