Home / 37,920.20-52,331.49-21,153.20

Finding the Fourth Proportional to 37,920.20, 52,331.49 and 21,153.20

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Solution

The fourth proportional to 37,920.20, 52,331.49 and 21,153.20 is: 29,192.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,920.20 : 52,331.49 = 21,153.20 : x
  2. Step 2: Convert to fraction form
    37,920.20/52,331.49 = 21,153.20/x
  3. Step 3: Cross multiply
    37,920.20x = 52,331.49 × 21,153.20
  4. Step 4: Simplify right side
    37,920.20x = 1,106,978,474.27
  5. Step 5: Solve for x
    x = 1,106,978,474.27/37,920.20
  6. Step 6: Final answer
    x = 29,192.32

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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.