Home / 30,715.20-46,061.28-13,176

Finding the Fourth Proportional to 30,715.20, 46,061.28 and 13,176

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Solution

The fourth proportional to 30,715.20, 46,061.28 and 13,176 is: 19,759.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,715.20 : 46,061.28 = 13,176 : x
  2. Step 2: Convert to fraction form
    30,715.20/46,061.28 = 13,176/x
  3. Step 3: Cross multiply
    30,715.20x = 46,061.28 × 13,176
  4. Step 4: Simplify right side
    30,715.20x = 606,903,425.28
  5. Step 5: Solve for x
    x = 606,903,425.28/30,715.20
  6. Step 6: Final answer
    x = 19,759.06

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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.