Home / 30,406.13-45,611.61-10,689.11

Finding the Fourth Proportional to 30,406.13, 45,611.61 and 10,689.11

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Solution

The fourth proportional to 30,406.13, 45,611.61 and 10,689.11 is: 16,034.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,406.13 : 45,611.61 = 10,689.11 : x
  2. Step 2: Convert to fraction form
    30,406.13/45,611.61 = 10,689.11/x
  3. Step 3: Cross multiply
    30,406.13x = 45,611.61 × 10,689.11
  4. Step 4: Simplify right side
    30,406.13x = 487,547,516.57
  5. Step 5: Solve for x
    x = 487,547,516.57/30,406.13
  6. Step 6: Final answer
    x = 16,034.51

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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.