Home / 28,730.70-43,100.10-9,007.20

Finding the Fourth Proportional to 28,730.70, 43,100.10 and 9,007.20

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Solution

The fourth proportional to 28,730.70, 43,100.10 and 9,007.20 is: 13,512.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,730.70 : 43,100.10 = 9,007.20 : x
  2. Step 2: Convert to fraction form
    28,730.70/43,100.10 = 9,007.20/x
  3. Step 3: Cross multiply
    28,730.70x = 43,100.10 × 9,007.20
  4. Step 4: Simplify right side
    28,730.70x = 388,211,220.72
  5. Step 5: Solve for x
    x = 388,211,220.72/28,730.70
  6. Step 6: Final answer
    x = 13,512.07

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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.