Home / 19,805.77-27,331.98-10,853.60

Finding the Fourth Proportional to 19,805.77, 27,331.98 and 10,853.60

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Solution

The fourth proportional to 19,805.77, 27,331.98 and 10,853.60 is: 14,977.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,805.77 : 27,331.98 = 10,853.60 : x
  2. Step 2: Convert to fraction form
    19,805.77/27,331.98 = 10,853.60/x
  3. Step 3: Cross multiply
    19,805.77x = 27,331.98 × 10,853.60
  4. Step 4: Simplify right side
    19,805.77x = 296,650,261.82
  5. Step 5: Solve for x
    x = 296,650,261.82/19,805.77
  6. Step 6: Final answer
    x = 14,977.97

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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.