Home / 25,381.54-35,030.56-15,311.43

Finding the Fourth Proportional to 25,381.54, 35,030.56 and 15,311.43

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Solution

The fourth proportional to 25,381.54, 35,030.56 and 15,311.43 is: 21,132.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,381.54 : 35,030.56 = 15,311.43 : x
  2. Step 2: Convert to fraction form
    25,381.54/35,030.56 = 15,311.43/x
  3. Step 3: Cross multiply
    25,381.54x = 35,030.56 × 15,311.43
  4. Step 4: Simplify right side
    25,381.54x = 536,367,967.30
  5. Step 5: Solve for x
    x = 536,367,967.30/25,381.54
  6. Step 6: Final answer
    x = 21,132.21

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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.