Home / 28,744.71-43,121.64-9,018.60

Finding the Fourth Proportional to 28,744.71, 43,121.64 and 9,018.60

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Solution

The fourth proportional to 28,744.71, 43,121.64 and 9,018.60 is: 13,529.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,744.71 : 43,121.64 = 9,018.60 : x
  2. Step 2: Convert to fraction form
    28,744.71/43,121.64 = 9,018.60/x
  3. Step 3: Cross multiply
    28,744.71x = 43,121.64 × 9,018.60
  4. Step 4: Simplify right side
    28,744.71x = 388,896,822.50
  5. Step 5: Solve for x
    x = 388,896,822.50/28,744.71
  6. Step 6: Final answer
    x = 13,529.34

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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.