Home / 28,175.52-42,271.92-10,650.72

Finding the Fourth Proportional to 28,175.52, 42,271.92 and 10,650.72

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Solution

The fourth proportional to 28,175.52, 42,271.92 and 10,650.72 is: 15,979.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,175.52 : 42,271.92 = 10,650.72 : x
  2. Step 2: Convert to fraction form
    28,175.52/42,271.92 = 10,650.72/x
  3. Step 3: Cross multiply
    28,175.52x = 42,271.92 × 10,650.72
  4. Step 4: Simplify right side
    28,175.52x = 450,226,383.78
  5. Step 5: Solve for x
    x = 450,226,383.78/28,175.52
  6. Step 6: Final answer
    x = 15,979.35

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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.