Home / 28,785.08-39,723.35-16,850.68

Finding the Fourth Proportional to 28,785.08, 39,723.35 and 16,850.68

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Solution

The fourth proportional to 28,785.08, 39,723.35 and 16,850.68 is: 23,253.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,785.08 : 39,723.35 = 16,850.68 : x
  2. Step 2: Convert to fraction form
    28,785.08/39,723.35 = 16,850.68/x
  3. Step 3: Cross multiply
    28,785.08x = 39,723.35 × 16,850.68
  4. Step 4: Simplify right side
    28,785.08x = 669,365,275.82
  5. Step 5: Solve for x
    x = 669,365,275.82/28,785.08
  6. Step 6: Final answer
    x = 23,253.89

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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.