Home / 28,789.29-43,208.55-11,271.42

Finding the Fourth Proportional to 28,789.29, 43,208.55 and 11,271.42

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Solution

The fourth proportional to 28,789.29, 43,208.55 and 11,271.42 is: 16,916.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,789.29 : 43,208.55 = 11,271.42 : x
  2. Step 2: Convert to fraction form
    28,789.29/43,208.55 = 11,271.42/x
  3. Step 3: Cross multiply
    28,789.29x = 43,208.55 × 11,271.42
  4. Step 4: Simplify right side
    28,789.29x = 487,021,714.64
  5. Step 5: Solve for x
    x = 487,021,714.64/28,789.29
  6. Step 6: Final answer
    x = 16,916.77

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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.