Home / 30,406.17-45,611.69-10,689.15

Finding the Fourth Proportional to 30,406.17, 45,611.69 and 10,689.15

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Solution

The fourth proportional to 30,406.17, 45,611.69 and 10,689.15 is: 16,034.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,406.17 : 45,611.69 = 10,689.15 : x
  2. Step 2: Convert to fraction form
    30,406.17/45,611.69 = 10,689.15/x
  3. Step 3: Cross multiply
    30,406.17x = 45,611.69 × 10,689.15
  4. Step 4: Simplify right side
    30,406.17x = 487,550,373.89
  5. Step 5: Solve for x
    x = 487,550,373.89/30,406.17
  6. Step 6: Final answer
    x = 16,034.58

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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.