Home / 22,455.57-30,988.92-12,384.43

Finding the Fourth Proportional to 22,455.57, 30,988.92 and 12,384.43

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Solution

The fourth proportional to 22,455.57, 30,988.92 and 12,384.43 is: 17,090.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,455.57 : 30,988.92 = 12,384.43 : x
  2. Step 2: Convert to fraction form
    22,455.57/30,988.92 = 12,384.43/x
  3. Step 3: Cross multiply
    22,455.57x = 30,988.92 × 12,384.43
  4. Step 4: Simplify right side
    22,455.57x = 383,780,110.52
  5. Step 5: Solve for x
    x = 383,780,110.52/22,455.57
  6. Step 6: Final answer
    x = 17,090.64

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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.