Home / 19,720.62-29,589.57-10,358.47

Finding the Fourth Proportional to 19,720.62, 29,589.57 and 10,358.47

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Solution

The fourth proportional to 19,720.62, 29,589.57 and 10,358.47 is: 15,542.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,720.62 : 29,589.57 = 10,358.47 : x
  2. Step 2: Convert to fraction form
    19,720.62/29,589.57 = 10,358.47/x
  3. Step 3: Cross multiply
    19,720.62x = 29,589.57 × 10,358.47
  4. Step 4: Simplify right side
    19,720.62x = 306,502,599.18
  5. Step 5: Solve for x
    x = 306,502,599.18/19,720.62
  6. Step 6: Final answer
    x = 15,542.24

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.