Home / 21,466.84-29,618.18-13,913.49

Finding the Fourth Proportional to 21,466.84, 29,618.18 and 13,913.49

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Solution

The fourth proportional to 21,466.84, 29,618.18 and 13,913.49 is: 19,196.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,466.84 : 29,618.18 = 13,913.49 : x
  2. Step 2: Convert to fraction form
    21,466.84/29,618.18 = 13,913.49/x
  3. Step 3: Cross multiply
    21,466.84x = 29,618.18 × 13,913.49
  4. Step 4: Simplify right side
    21,466.84x = 412,092,217.45
  5. Step 5: Solve for x
    x = 412,092,217.45/21,466.84
  6. Step 6: Final answer
    x = 19,196.69

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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.