Home / 28,727.23-39,644.39-15,980.82

Finding the Fourth Proportional to 28,727.23, 39,644.39 and 15,980.82

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Solution

The fourth proportional to 28,727.23, 39,644.39 and 15,980.82 is: 22,053.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,727.23 : 39,644.39 = 15,980.82 : x
  2. Step 2: Convert to fraction form
    28,727.23/39,644.39 = 15,980.82/x
  3. Step 3: Cross multiply
    28,727.23x = 39,644.39 × 15,980.82
  4. Step 4: Simplify right side
    28,727.23x = 633,549,773.49
  5. Step 5: Solve for x
    x = 633,549,773.49/28,727.23
  6. Step 6: Final answer
    x = 22,053.98

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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.