Home / 19,720.65-27,209.62-11,654.48

Finding the Fourth Proportional to 19,720.65, 27,209.62 and 11,654.48

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Solution

The fourth proportional to 19,720.65, 27,209.62 and 11,654.48 is: 16,080.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,720.65 : 27,209.62 = 11,654.48 : x
  2. Step 2: Convert to fraction form
    19,720.65/27,209.62 = 11,654.48/x
  3. Step 3: Cross multiply
    19,720.65x = 27,209.62 × 11,654.48
  4. Step 4: Simplify right side
    19,720.65x = 317,114,054.69
  5. Step 5: Solve for x
    x = 317,114,054.69/19,720.65
  6. Step 6: Final answer
    x = 16,080.31

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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.