Home / 25,145.70-37,791.45-21,938.10

Finding the Fourth Proportional to 25,145.70, 37,791.45 and 21,938.10

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Solution

The fourth proportional to 25,145.70, 37,791.45 and 21,938.10 is: 32,970.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,145.70 : 37,791.45 = 21,938.10 : x
  2. Step 2: Convert to fraction form
    25,145.70/37,791.45 = 21,938.10/x
  3. Step 3: Cross multiply
    25,145.70x = 37,791.45 × 21,938.10
  4. Step 4: Simplify right side
    25,145.70x = 829,072,609.25
  5. Step 5: Solve for x
    x = 829,072,609.25/25,145.70
  6. Step 6: Final answer
    x = 32,970.75

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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.