Home / 20,371.60-30,557.45-5,582.72

Finding the Fourth Proportional to 20,371.60, 30,557.45 and 5,582.72

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Solution

The fourth proportional to 20,371.60, 30,557.45 and 5,582.72 is: 8,374.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,371.60 : 30,557.45 = 5,582.72 : x
  2. Step 2: Convert to fraction form
    20,371.60/30,557.45 = 5,582.72/x
  3. Step 3: Cross multiply
    20,371.60x = 30,557.45 × 5,582.72
  4. Step 4: Simplify right side
    20,371.60x = 170,593,777.61
  5. Step 5: Solve for x
    x = 170,593,777.61/20,371.60
  6. Step 6: Final answer
    x = 8,374.10

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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.