Home / 28,789.32-39,729.78-16,214.52

Finding the Fourth Proportional to 28,789.32, 39,729.78 and 16,214.52

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Solution

The fourth proportional to 28,789.32, 39,729.78 and 16,214.52 is: 22,376.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,789.32 : 39,729.78 = 16,214.52 : x
  2. Step 2: Convert to fraction form
    28,789.32/39,729.78 = 16,214.52/x
  3. Step 3: Cross multiply
    28,789.32x = 39,729.78 × 16,214.52
  4. Step 4: Simplify right side
    28,789.32x = 644,199,312.41
  5. Step 5: Solve for x
    x = 644,199,312.41/28,789.32
  6. Step 6: Final answer
    x = 22,376.33

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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.