Home / 20,664.40-30,994.20-5,875.60

Finding the Fourth Proportional to 20,664.40, 30,994.20 and 5,875.60

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Solution

The fourth proportional to 20,664.40, 30,994.20 and 5,875.60 is: 8,812.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,664.40 : 30,994.20 = 5,875.60 : x
  2. Step 2: Convert to fraction form
    20,664.40/30,994.20 = 5,875.60/x
  3. Step 3: Cross multiply
    20,664.40x = 30,994.20 × 5,875.60
  4. Step 4: Simplify right side
    20,664.40x = 182,109,521.52
  5. Step 5: Solve for x
    x = 182,109,521.52/20,664.40
  6. Step 6: Final answer
    x = 8,812.72

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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.