Home / 22,455.82-30,988.29-12,384.44

Finding the Fourth Proportional to 22,455.82, 30,988.29 and 12,384.44

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Solution

The fourth proportional to 22,455.82, 30,988.29 and 12,384.44 is: 17,090.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,455.82 : 30,988.29 = 12,384.44 : x
  2. Step 2: Convert to fraction form
    22,455.82/30,988.29 = 12,384.44/x
  3. Step 3: Cross multiply
    22,455.82x = 30,988.29 × 12,384.44
  4. Step 4: Simplify right side
    22,455.82x = 383,772,618.21
  5. Step 5: Solve for x
    x = 383,772,618.21/22,455.82
  6. Step 6: Final answer
    x = 17,090.12

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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.