Home / 30,455.91-45,679.23-10,729.84

Finding the Fourth Proportional to 30,455.91, 45,679.23 and 10,729.84

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Solution

The fourth proportional to 30,455.91, 45,679.23 and 10,729.84 is: 16,093.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,455.91 : 45,679.23 = 10,729.84 : x
  2. Step 2: Convert to fraction form
    30,455.91/45,679.23 = 10,729.84/x
  3. Step 3: Cross multiply
    30,455.91x = 45,679.23 × 10,729.84
  4. Step 4: Simplify right side
    30,455.91x = 490,130,829.22
  5. Step 5: Solve for x
    x = 490,130,829.22/30,455.91
  6. Step 6: Final answer
    x = 16,093.13

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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.