Home / 19,740.80-27,242.68-10,788.85

Finding the Fourth Proportional to 19,740.80, 27,242.68 and 10,788.85

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Solution

The fourth proportional to 19,740.80, 27,242.68 and 10,788.85 is: 14,888.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,740.80 : 27,242.68 = 10,788.85 : x
  2. Step 2: Convert to fraction form
    19,740.80/27,242.68 = 10,788.85/x
  3. Step 3: Cross multiply
    19,740.80x = 27,242.68 × 10,788.85
  4. Step 4: Simplify right side
    19,740.80x = 293,917,051.90
  5. Step 5: Solve for x
    x = 293,917,051.90/19,740.80
  6. Step 6: Final answer
    x = 14,888.82

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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.