Home / 28,383.72-39,166.02-16,442.76

Finding the Fourth Proportional to 28,383.72, 39,166.02 and 16,442.76

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Solution

The fourth proportional to 28,383.72, 39,166.02 and 16,442.76 is: 22,688.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,383.72 : 39,166.02 = 16,442.76 : x
  2. Step 2: Convert to fraction form
    28,383.72/39,166.02 = 16,442.76/x
  3. Step 3: Cross multiply
    28,383.72x = 39,166.02 × 16,442.76
  4. Step 4: Simplify right side
    28,383.72x = 643,997,467.02
  5. Step 5: Solve for x
    x = 643,997,467.02/28,383.72
  6. Step 6: Final answer
    x = 22,688.97

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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.