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Finding the Fourth Proportional to 30,407.13, 45,613.11 and 10,690.11

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Solution

The fourth proportional to 30,407.13, 45,613.11 and 10,690.11 is: 16,036.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,407.13 : 45,613.11 = 10,690.11 : x
  2. Step 2: Convert to fraction form
    30,407.13/45,613.11 = 10,690.11/x
  3. Step 3: Cross multiply
    30,407.13x = 45,613.11 × 10,690.11
  4. Step 4: Simplify right side
    30,407.13x = 487,609,163.34
  5. Step 5: Solve for x
    x = 487,609,163.34/30,407.13
  6. Step 6: Final answer
    x = 16,036.01

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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.