Home / 19,672.65-27,147.91-10,720.21

Finding the Fourth Proportional to 19,672.65, 27,147.91 and 10,720.21

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Solution

The fourth proportional to 19,672.65, 27,147.91 and 10,720.21 is: 14,793.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,672.65 : 27,147.91 = 10,720.21 : x
  2. Step 2: Convert to fraction form
    19,672.65/27,147.91 = 10,720.21/x
  3. Step 3: Cross multiply
    19,672.65x = 27,147.91 × 10,720.21
  4. Step 4: Simplify right side
    19,672.65x = 291,031,296.26
  5. Step 5: Solve for x
    x = 291,031,296.26/19,672.65
  6. Step 6: Final answer
    x = 14,793.70

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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.