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Finding the Fourth Proportional to 30,469.03, 45,685.08 and 19,926.32

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Solution

The fourth proportional to 30,469.03, 45,685.08 and 19,926.32 is: 29,877.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,469.03 : 45,685.08 = 19,926.32 : x
  2. Step 2: Convert to fraction form
    30,469.03/45,685.08 = 19,926.32/x
  3. Step 3: Cross multiply
    30,469.03x = 45,685.08 × 19,926.32
  4. Step 4: Simplify right side
    30,469.03x = 910,335,523.31
  5. Step 5: Solve for x
    x = 910,335,523.31/30,469.03
  6. Step 6: Final answer
    x = 29,877.40

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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.