Home / 19,560.79-29,291.10-10,785.97

Finding the Fourth Proportional to 19,560.79, 29,291.10 and 10,785.97

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Solution

The fourth proportional to 19,560.79, 29,291.10 and 10,785.97 is: 16,151.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,560.79 : 29,291.10 = 10,785.97 : x
  2. Step 2: Convert to fraction form
    19,560.79/29,291.10 = 10,785.97/x
  3. Step 3: Cross multiply
    19,560.79x = 29,291.10 × 10,785.97
  4. Step 4: Simplify right side
    19,560.79x = 315,932,925.87
  5. Step 5: Solve for x
    x = 315,932,925.87/19,560.79
  6. Step 6: Final answer
    x = 16,151.34

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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.