Home / 37,938.87-52,357.38-21,811.41

Finding the Fourth Proportional to 37,938.87, 52,357.38 and 21,811.41

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Solution

The fourth proportional to 37,938.87, 52,357.38 and 21,811.41 is: 30,100.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,938.87 : 52,357.38 = 21,811.41 : x
  2. Step 2: Convert to fraction form
    37,938.87/52,357.38 = 21,811.41/x
  3. Step 3: Cross multiply
    37,938.87x = 52,357.38 × 21,811.41
  4. Step 4: Simplify right side
    37,938.87x = 1,141,988,281.71
  5. Step 5: Solve for x
    x = 1,141,988,281.71/37,938.87
  6. Step 6: Final answer
    x = 30,100.75

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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.