Home / 20,848.60-31,272.90-10,456.60

Finding the Fourth Proportional to 20,848.60, 31,272.90 and 10,456.60

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Solution

The fourth proportional to 20,848.60, 31,272.90 and 10,456.60 is: 15,684.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,848.60 : 31,272.90 = 10,456.60 : x
  2. Step 2: Convert to fraction form
    20,848.60/31,272.90 = 10,456.60/x
  3. Step 3: Cross multiply
    20,848.60x = 31,272.90 × 10,456.60
  4. Step 4: Simplify right side
    20,848.60x = 327,008,206.14
  5. Step 5: Solve for x
    x = 327,008,206.14/20,848.60
  6. Step 6: Final answer
    x = 15,684.90

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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.