Home / 20,725.55-28,599.89-11,652.31

Finding the Fourth Proportional to 20,725.55, 28,599.89 and 11,652.31

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Solution

The fourth proportional to 20,725.55, 28,599.89 and 11,652.31 is: 16,079.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,725.55 : 28,599.89 = 11,652.31 : x
  2. Step 2: Convert to fraction form
    20,725.55/28,599.89 = 11,652.31/x
  3. Step 3: Cross multiply
    20,725.55x = 28,599.89 × 11,652.31
  4. Step 4: Simplify right side
    20,725.55x = 333,254,600.86
  5. Step 5: Solve for x
    x = 333,254,600.86/20,725.55
  6. Step 6: Final answer
    x = 16,079.41

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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.