Home / 25,278.57-37,938.51-17,890.20

Finding the Fourth Proportional to 25,278.57, 37,938.51 and 17,890.20

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Solution

The fourth proportional to 25,278.57, 37,938.51 and 17,890.20 is: 26,849.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,278.57 : 37,938.51 = 17,890.20 : x
  2. Step 2: Convert to fraction form
    25,278.57/37,938.51 = 17,890.20/x
  3. Step 3: Cross multiply
    25,278.57x = 37,938.51 × 17,890.20
  4. Step 4: Simplify right side
    25,278.57x = 678,727,531.60
  5. Step 5: Solve for x
    x = 678,727,531.60/25,278.57
  6. Step 6: Final answer
    x = 26,849.92

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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.