Home / 25,848.60-38,772.90-20,664.60

Finding the Fourth Proportional to 25,848.60, 38,772.90 and 20,664.60

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Solution

The fourth proportional to 25,848.60, 38,772.90 and 20,664.60 is: 30,996.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,848.60 : 38,772.90 = 20,664.60 : x
  2. Step 2: Convert to fraction form
    25,848.60/38,772.90 = 20,664.60/x
  3. Step 3: Cross multiply
    25,848.60x = 38,772.90 × 20,664.60
  4. Step 4: Simplify right side
    25,848.60x = 801,226,469.34
  5. Step 5: Solve for x
    x = 801,226,469.34/25,848.60
  6. Step 6: Final answer
    x = 30,996.90

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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.