Home / 20,817.93-28,729.80-12,324.93

Finding the Fourth Proportional to 20,817.93, 28,729.80 and 12,324.93

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Solution

The fourth proportional to 20,817.93, 28,729.80 and 12,324.93 is: 17,009.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,817.93 : 28,729.80 = 12,324.93 : x
  2. Step 2: Convert to fraction form
    20,817.93/28,729.80 = 12,324.93/x
  3. Step 3: Cross multiply
    20,817.93x = 28,729.80 × 12,324.93
  4. Step 4: Simplify right side
    20,817.93x = 354,092,773.91
  5. Step 5: Solve for x
    x = 354,092,773.91/20,817.93
  6. Step 6: Final answer
    x = 17,009.03

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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.