Home / 19,979.99-29,961.27-10,617.76

Finding the Fourth Proportional to 19,979.99, 29,961.27 and 10,617.76

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Solution

The fourth proportional to 19,979.99, 29,961.27 and 10,617.76 is: 15,922.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,979.99 : 29,961.27 = 10,617.76 : x
  2. Step 2: Convert to fraction form
    19,979.99/29,961.27 = 10,617.76/x
  3. Step 3: Cross multiply
    19,979.99x = 29,961.27 × 10,617.76
  4. Step 4: Simplify right side
    19,979.99x = 318,121,497.48
  5. Step 5: Solve for x
    x = 318,121,497.48/19,979.99
  6. Step 6: Final answer
    x = 15,922.00

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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.