Home / 20,718.92-28,602.92-16,109.48

Finding the Fourth Proportional to 20,718.92, 28,602.92 and 16,109.48

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Solution

The fourth proportional to 20,718.92, 28,602.92 and 16,109.48 is: 22,239.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,718.92 : 28,602.92 = 16,109.48 : x
  2. Step 2: Convert to fraction form
    20,718.92/28,602.92 = 16,109.48/x
  3. Step 3: Cross multiply
    20,718.92x = 28,602.92 × 16,109.48
  4. Step 4: Simplify right side
    20,718.92x = 460,777,944.12
  5. Step 5: Solve for x
    x = 460,777,944.12/20,718.92
  6. Step 6: Final answer
    x = 22,239.48

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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.