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Finding the Fourth Proportional to 30,480.30, 45,720.45 and 29,022.30

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Solution

The fourth proportional to 30,480.30, 45,720.45 and 29,022.30 is: 43,533.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,480.30 : 45,720.45 = 29,022.30 : x
  2. Step 2: Convert to fraction form
    30,480.30/45,720.45 = 29,022.30/x
  3. Step 3: Cross multiply
    30,480.30x = 45,720.45 × 29,022.30
  4. Step 4: Simplify right side
    30,480.30x = 1,326,912,616.04
  5. Step 5: Solve for x
    x = 1,326,912,616.04/30,480.30
  6. Step 6: Final answer
    x = 43,533.45

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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.