Home / 30,715.76-46,061.24-11,993.12

Finding the Fourth Proportional to 30,715.76, 46,061.24 and 11,993.12

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Solution

The fourth proportional to 30,715.76, 46,061.24 and 11,993.12 is: 17,984.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,715.76 : 46,061.24 = 11,993.12 : x
  2. Step 2: Convert to fraction form
    30,715.76/46,061.24 = 11,993.12/x
  3. Step 3: Cross multiply
    30,715.76x = 46,061.24 × 11,993.12
  4. Step 4: Simplify right side
    30,715.76x = 552,417,978.67
  5. Step 5: Solve for x
    x = 552,417,978.67/30,715.76
  6. Step 6: Final answer
    x = 17,984.84

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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.