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Finding the Fourth Proportional to 19,959.58, 29,939.37 and 13,700.61

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Solution

The fourth proportional to 19,959.58, 29,939.37 and 13,700.61 is: 20,550.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,959.58 : 29,939.37 = 13,700.61 : x
  2. Step 2: Convert to fraction form
    19,959.58/29,939.37 = 13,700.61/x
  3. Step 3: Cross multiply
    19,959.58x = 29,939.37 × 13,700.61
  4. Step 4: Simplify right side
    19,959.58x = 410,187,632.02
  5. Step 5: Solve for x
    x = 410,187,632.02/19,959.58
  6. Step 6: Final answer
    x = 20,550.92

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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.