Home / 25,286.40-37,929.60-13,476.60

Finding the Fourth Proportional to 25,286.40, 37,929.60 and 13,476.60

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Solution

The fourth proportional to 25,286.40, 37,929.60 and 13,476.60 is: 20,214.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,286.40 : 37,929.60 = 13,476.60 : x
  2. Step 2: Convert to fraction form
    25,286.40/37,929.60 = 13,476.60/x
  3. Step 3: Cross multiply
    25,286.40x = 37,929.60 × 13,476.60
  4. Step 4: Simplify right side
    25,286.40x = 511,162,047.36
  5. Step 5: Solve for x
    x = 511,162,047.36/25,286.40
  6. Step 6: Final answer
    x = 20,214.90

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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.