Home / 28,829.36-39,785.10-16,251.68

Finding the Fourth Proportional to 28,829.36, 39,785.10 and 16,251.68

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Solution

The fourth proportional to 28,829.36, 39,785.10 and 16,251.68 is: 22,427.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,829.36 : 39,785.10 = 16,251.68 : x
  2. Step 2: Convert to fraction form
    28,829.36/39,785.10 = 16,251.68/x
  3. Step 3: Cross multiply
    28,829.36x = 39,785.10 × 16,251.68
  4. Step 4: Simplify right side
    28,829.36x = 646,574,713.97
  5. Step 5: Solve for x
    x = 646,574,713.97/28,829.36
  6. Step 6: Final answer
    x = 22,427.65

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.