Home / 19,615.56-29,425.16-11,279.44

Finding the Fourth Proportional to 19,615.56, 29,425.16 and 11,279.44

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Solution

The fourth proportional to 19,615.56, 29,425.16 and 11,279.44 is: 16,920.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,615.56 : 29,425.16 = 11,279.44 : x
  2. Step 2: Convert to fraction form
    19,615.56/29,425.16 = 11,279.44/x
  3. Step 3: Cross multiply
    19,615.56x = 29,425.16 × 11,279.44
  4. Step 4: Simplify right side
    19,615.56x = 331,899,326.71
  5. Step 5: Solve for x
    x = 331,899,326.71/19,615.56
  6. Step 6: Final answer
    x = 16,920.21

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.