Home / 28,826.34-39,780.30-16,251.09

Finding the Fourth Proportional to 28,826.34, 39,780.30 and 16,251.09

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Solution

The fourth proportional to 28,826.34, 39,780.30 and 16,251.09 is: 22,426.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,826.34 : 39,780.30 = 16,251.09 : x
  2. Step 2: Convert to fraction form
    28,826.34/39,780.30 = 16,251.09/x
  3. Step 3: Cross multiply
    28,826.34x = 39,780.30 × 16,251.09
  4. Step 4: Simplify right side
    28,826.34x = 646,473,235.53
  5. Step 5: Solve for x
    x = 646,473,235.53/28,826.34
  6. Step 6: Final answer
    x = 22,426.48

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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.