Home / 21,725.74-29,980.70-12,294.52

Finding the Fourth Proportional to 21,725.74, 29,980.70 and 12,294.52

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Solution

The fourth proportional to 21,725.74, 29,980.70 and 12,294.52 is: 16,965.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,725.74 : 29,980.70 = 12,294.52 : x
  2. Step 2: Convert to fraction form
    21,725.74/29,980.70 = 12,294.52/x
  3. Step 3: Cross multiply
    21,725.74x = 29,980.70 × 12,294.52
  4. Step 4: Simplify right side
    21,725.74x = 368,598,315.76
  5. Step 5: Solve for x
    x = 368,598,315.76/21,725.74
  6. Step 6: Final answer
    x = 16,965.97

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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.