Home / 30,022.72-44,984.88-21,214.60

Finding the Fourth Proportional to 30,022.72, 44,984.88 and 21,214.60

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Solution

The fourth proportional to 30,022.72, 44,984.88 and 21,214.60 is: 31,787.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,022.72 : 44,984.88 = 21,214.60 : x
  2. Step 2: Convert to fraction form
    30,022.72/44,984.88 = 21,214.60/x
  3. Step 3: Cross multiply
    30,022.72x = 44,984.88 × 21,214.60
  4. Step 4: Simplify right side
    30,022.72x = 954,336,235.25
  5. Step 5: Solve for x
    x = 954,336,235.25/30,022.72
  6. Step 6: Final answer
    x = 31,787.13

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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.