Home / 22,455.48-30,990.32-12,384.84

Finding the Fourth Proportional to 22,455.48, 30,990.32 and 12,384.84

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Solution

The fourth proportional to 22,455.48, 30,990.32 and 12,384.84 is: 17,092.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,455.48 : 30,990.32 = 12,384.84 : x
  2. Step 2: Convert to fraction form
    22,455.48/30,990.32 = 12,384.84/x
  3. Step 3: Cross multiply
    22,455.48x = 30,990.32 × 12,384.84
  4. Step 4: Simplify right side
    22,455.48x = 383,810,154.75
  5. Step 5: Solve for x
    x = 383,810,154.75/22,455.48
  6. Step 6: Final answer
    x = 17,092.05

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.