Home / 28,456.72-42,690.10-9,732.36

Finding the Fourth Proportional to 28,456.72, 42,690.10 and 9,732.36

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Solution

The fourth proportional to 28,456.72, 42,690.10 and 9,732.36 is: 14,600.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,456.72 : 42,690.10 = 9,732.36 : x
  2. Step 2: Convert to fraction form
    28,456.72/42,690.10 = 9,732.36/x
  3. Step 3: Cross multiply
    28,456.72x = 42,690.10 × 9,732.36
  4. Step 4: Simplify right side
    28,456.72x = 415,475,421.64
  5. Step 5: Solve for x
    x = 415,475,421.64/28,456.72
  6. Step 6: Final answer
    x = 14,600.26

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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.