Home / 30,960.34-46,440.50-12,479.38

Finding the Fourth Proportional to 30,960.34, 46,440.50 and 12,479.38

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Solution

The fourth proportional to 30,960.34, 46,440.50 and 12,479.38 is: 18,719.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,960.34 : 46,440.50 = 12,479.38 : x
  2. Step 2: Convert to fraction form
    30,960.34/46,440.50 = 12,479.38/x
  3. Step 3: Cross multiply
    30,960.34x = 46,440.50 × 12,479.38
  4. Step 4: Simplify right side
    30,960.34x = 579,548,646.89
  5. Step 5: Solve for x
    x = 579,548,646.89/30,960.34
  6. Step 6: Final answer
    x = 18,719.07

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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.