Home / 23,390.82-32,279.45-12,780.63

Finding the Fourth Proportional to 23,390.82, 32,279.45 and 12,780.63

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Solution

The fourth proportional to 23,390.82, 32,279.45 and 12,780.63 is: 17,637.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,390.82 : 32,279.45 = 12,780.63 : x
  2. Step 2: Convert to fraction form
    23,390.82/32,279.45 = 12,780.63/x
  3. Step 3: Cross multiply
    23,390.82x = 32,279.45 × 12,780.63
  4. Step 4: Simplify right side
    23,390.82x = 412,551,643.15
  5. Step 5: Solve for x
    x = 412,551,643.15/23,390.82
  6. Step 6: Final answer
    x = 17,637.33

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Half scale
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Double scale
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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.