Home / 22,021.84-30,389.96-12,461.64

Finding the Fourth Proportional to 22,021.84, 30,389.96 and 12,461.64

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Solution

The fourth proportional to 22,021.84, 30,389.96 and 12,461.64 is: 17,196.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,021.84 : 30,389.96 = 12,461.64 : x
  2. Step 2: Convert to fraction form
    22,021.84/30,389.96 = 12,461.64/x
  3. Step 3: Cross multiply
    22,021.84x = 30,389.96 × 12,461.64
  4. Step 4: Simplify right side
    22,021.84x = 378,708,741.13
  5. Step 5: Solve for x
    x = 378,708,741.13/22,021.84
  6. Step 6: Final answer
    x = 17,196.96

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Double scale
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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.