Home / 19,778.06-27,293.49-10,703.21

Finding the Fourth Proportional to 19,778.06, 27,293.49 and 10,703.21

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Solution

The fourth proportional to 19,778.06, 27,293.49 and 10,703.21 is: 14,770.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,778.06 : 27,293.49 = 10,703.21 : x
  2. Step 2: Convert to fraction form
    19,778.06/27,293.49 = 10,703.21/x
  3. Step 3: Cross multiply
    19,778.06x = 27,293.49 × 10,703.21
  4. Step 4: Simplify right side
    19,778.06x = 292,127,907.61
  5. Step 5: Solve for x
    x = 292,127,907.61/19,778.06
  6. Step 6: Final answer
    x = 14,770.30

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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.