Home / 21,727.39-29,973.36-12,774.46

Finding the Fourth Proportional to 21,727.39, 29,973.36 and 12,774.46

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Solution

The fourth proportional to 21,727.39, 29,973.36 and 12,774.46 is: 17,622.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,727.39 : 29,973.36 = 12,774.46 : x
  2. Step 2: Convert to fraction form
    21,727.39/29,973.36 = 12,774.46/x
  3. Step 3: Cross multiply
    21,727.39x = 29,973.36 × 12,774.46
  4. Step 4: Simplify right side
    21,727.39x = 382,893,488.39
  5. Step 5: Solve for x
    x = 382,893,488.39/21,727.39
  6. Step 6: Final answer
    x = 17,622.62

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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.