Home / 20,677.05-28,531.98-11,724.93

Finding the Fourth Proportional to 20,677.05, 28,531.98 and 11,724.93

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Solution

The fourth proportional to 20,677.05, 28,531.98 and 11,724.93 is: 16,179.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,677.05 : 28,531.98 = 11,724.93 : x
  2. Step 2: Convert to fraction form
    20,677.05/28,531.98 = 11,724.93/x
  3. Step 3: Cross multiply
    20,677.05x = 28,531.98 × 11,724.93
  4. Step 4: Simplify right side
    20,677.05x = 334,535,468.26
  5. Step 5: Solve for x
    x = 334,535,468.26/20,677.05
  6. Step 6: Final answer
    x = 16,179.07

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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.