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Finding the Fourth Proportional to 30,073.16, 45,109.74 and 9,015.42

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Solution

The fourth proportional to 30,073.16, 45,109.74 and 9,015.42 is: 13,523.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,073.16 : 45,109.74 = 9,015.42 : x
  2. Step 2: Convert to fraction form
    30,073.16/45,109.74 = 9,015.42/x
  3. Step 3: Cross multiply
    30,073.16x = 45,109.74 × 9,015.42
  4. Step 4: Simplify right side
    30,073.16x = 406,683,252.19
  5. Step 5: Solve for x
    x = 406,683,252.19/30,073.16
  6. Step 6: Final answer
    x = 13,523.13

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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.