Home / 20,410.73-30,625.50-9,320.81

Finding the Fourth Proportional to 20,410.73, 30,625.50 and 9,320.81

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Solution

The fourth proportional to 20,410.73, 30,625.50 and 9,320.81 is: 13,985.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,410.73 : 30,625.50 = 9,320.81 : x
  2. Step 2: Convert to fraction form
    20,410.73/30,625.50 = 9,320.81/x
  3. Step 3: Cross multiply
    20,410.73x = 30,625.50 × 9,320.81
  4. Step 4: Simplify right side
    20,410.73x = 285,454,466.66
  5. Step 5: Solve for x
    x = 285,454,466.66/20,410.73
  6. Step 6: Final answer
    x = 13,985.51

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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.