Home / 30,706.72-46,048.80-10,979.92

Finding the Fourth Proportional to 30,706.72, 46,048.80 and 10,979.92

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Solution

The fourth proportional to 30,706.72, 46,048.80 and 10,979.92 is: 16,465.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,706.72 : 46,048.80 = 10,979.92 : x
  2. Step 2: Convert to fraction form
    30,706.72/46,048.80 = 10,979.92/x
  3. Step 3: Cross multiply
    30,706.72x = 46,048.80 × 10,979.92
  4. Step 4: Simplify right side
    30,706.72x = 505,612,140.10
  5. Step 5: Solve for x
    x = 505,612,140.10/30,706.72
  6. Step 6: Final answer
    x = 16,465.85

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1.5x scale

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.