Home / 30,405.13-45,610.11-10,688.11

Finding the Fourth Proportional to 30,405.13, 45,610.11 and 10,688.11

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Solution

The fourth proportional to 30,405.13, 45,610.11 and 10,688.11 is: 16,033.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,405.13 : 45,610.11 = 10,688.11 : x
  2. Step 2: Convert to fraction form
    30,405.13/45,610.11 = 10,688.11/x
  3. Step 3: Cross multiply
    30,405.13x = 45,610.11 × 10,688.11
  4. Step 4: Simplify right side
    30,405.13x = 487,485,758.77
  5. Step 5: Solve for x
    x = 487,485,758.77/30,405.13
  6. Step 6: Final answer
    x = 16,033.01

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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.