Home / 19,638.68-29,463.47-10,879.74

Finding the Fourth Proportional to 19,638.68, 29,463.47 and 10,879.74

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Solution

The fourth proportional to 19,638.68, 29,463.47 and 10,879.74 is: 16,322.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,638.68 : 29,463.47 = 10,879.74 : x
  2. Step 2: Convert to fraction form
    19,638.68/29,463.47 = 10,879.74/x
  3. Step 3: Cross multiply
    19,638.68x = 29,463.47 × 10,879.74
  4. Step 4: Simplify right side
    19,638.68x = 320,554,838.70
  5. Step 5: Solve for x
    x = 320,554,838.70/19,638.68
  6. Step 6: Final answer
    x = 16,322.63

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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.