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Finding the Fourth Proportional to 30,191.13, 45,290.34 and 8,005.03

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Solution

The fourth proportional to 30,191.13, 45,290.34 and 8,005.03 is: 12,008.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,191.13 : 45,290.34 = 8,005.03 : x
  2. Step 2: Convert to fraction form
    30,191.13/45,290.34 = 8,005.03/x
  3. Step 3: Cross multiply
    30,191.13x = 45,290.34 × 8,005.03
  4. Step 4: Simplify right side
    30,191.13x = 362,550,417.18
  5. Step 5: Solve for x
    x = 362,550,417.18/30,191.13
  6. Step 6: Final answer
    x = 12,008.51

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Similar ratio
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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.