Home / 25,927.30-38,900.51-20,975.57

Finding the Fourth Proportional to 25,927.30, 38,900.51 and 20,975.57

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Solution

The fourth proportional to 25,927.30, 38,900.51 and 20,975.57 is: 31,471.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,927.30 : 38,900.51 = 20,975.57 : x
  2. Step 2: Convert to fraction form
    25,927.30/38,900.51 = 20,975.57/x
  3. Step 3: Cross multiply
    25,927.30x = 38,900.51 × 20,975.57
  4. Step 4: Simplify right side
    25,927.30x = 815,960,228.48
  5. Step 5: Solve for x
    x = 815,960,228.48/25,927.30
  6. Step 6: Final answer
    x = 31,471.09

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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.