Home / 21,529.80-32,124.60-18,613.80

Finding the Fourth Proportional to 21,529.80, 32,124.60 and 18,613.80

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Solution

The fourth proportional to 21,529.80, 32,124.60 and 18,613.80 is: 27,773.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,529.80 : 32,124.60 = 18,613.80 : x
  2. Step 2: Convert to fraction form
    21,529.80/32,124.60 = 18,613.80/x
  3. Step 3: Cross multiply
    21,529.80x = 32,124.60 × 18,613.80
  4. Step 4: Simplify right side
    21,529.80x = 597,960,879.48
  5. Step 5: Solve for x
    x = 597,960,879.48/21,529.80
  6. Step 6: Final answer
    x = 27,773.64

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.