Home / 21,324.70-29,425.72-12,370.46

Finding the Fourth Proportional to 21,324.70, 29,425.72 and 12,370.46

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Solution

The fourth proportional to 21,324.70, 29,425.72 and 12,370.46 is: 17,069.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,324.70 : 29,425.72 = 12,370.46 : x
  2. Step 2: Convert to fraction form
    21,324.70/29,425.72 = 12,370.46/x
  3. Step 3: Cross multiply
    21,324.70x = 29,425.72 × 12,370.46
  4. Step 4: Simplify right side
    21,324.70x = 364,009,630.38
  5. Step 5: Solve for x
    x = 364,009,630.38/21,324.70
  6. Step 6: Final answer
    x = 17,069.86

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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.