Home / 19,805.42-27,331.49-10,730.80

Finding the Fourth Proportional to 19,805.42, 27,331.49 and 10,730.80

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Solution

The fourth proportional to 19,805.42, 27,331.49 and 10,730.80 is: 14,808.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,805.42 : 27,331.49 = 10,730.80 : x
  2. Step 2: Convert to fraction form
    19,805.42/27,331.49 = 10,730.80/x
  3. Step 3: Cross multiply
    19,805.42x = 27,331.49 × 10,730.80
  4. Step 4: Simplify right side
    19,805.42x = 293,288,630.91
  5. Step 5: Solve for x
    x = 293,288,630.91/19,805.42
  6. Step 6: Final answer
    x = 14,808.50

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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.