Home / 37,043-51,109.24-21,121.64

Finding the Fourth Proportional to 37,043, 51,109.24 and 21,121.64

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Solution

The fourth proportional to 37,043, 51,109.24 and 21,121.64 is: 29,142.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,043 : 51,109.24 = 21,121.64 : x
  2. Step 2: Convert to fraction form
    37,043/51,109.24 = 21,121.64/x
  3. Step 3: Cross multiply
    37,043x = 51,109.24 × 21,121.64
  4. Step 4: Simplify right side
    37,043x = 1,079,510,967.95
  5. Step 5: Solve for x
    x = 1,079,510,967.95/37,043
  6. Step 6: Final answer
    x = 29,142.10

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.