Home / 20,243.42-27,953.51-12,702.83

Finding the Fourth Proportional to 20,243.42, 27,953.51 and 12,702.83

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Solution

The fourth proportional to 20,243.42, 27,953.51 and 12,702.83 is: 17,540.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,243.42 : 27,953.51 = 12,702.83 : x
  2. Step 2: Convert to fraction form
    20,243.42/27,953.51 = 12,702.83/x
  3. Step 3: Cross multiply
    20,243.42x = 27,953.51 × 12,702.83
  4. Step 4: Simplify right side
    20,243.42x = 355,088,482.15
  5. Step 5: Solve for x
    x = 355,088,482.15/20,243.42
  6. Step 6: Final answer
    x = 17,540.93

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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.