Home / 37,938-52,355.52-21,172.08

Finding the Fourth Proportional to 37,938, 52,355.52 and 21,172.08

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Solution

The fourth proportional to 37,938, 52,355.52 and 21,172.08 is: 29,218.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,938 : 52,355.52 = 21,172.08 : x
  2. Step 2: Convert to fraction form
    37,938/52,355.52 = 21,172.08/x
  3. Step 3: Cross multiply
    37,938x = 52,355.52 × 21,172.08
  4. Step 4: Simplify right side
    37,938x = 1,108,475,257.88
  5. Step 5: Solve for x
    x = 1,108,475,257.88/37,938
  6. Step 6: Final answer
    x = 29,218.07

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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.