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Finding the Fourth Proportional to 17,877.80, 26,820.30 and 14,976.20

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Solution

The fourth proportional to 17,877.80, 26,820.30 and 14,976.20 is: 22,467.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,877.80 : 26,820.30 = 14,976.20 : x
  2. Step 2: Convert to fraction form
    17,877.80/26,820.30 = 14,976.20/x
  3. Step 3: Cross multiply
    17,877.80x = 26,820.30 × 14,976.20
  4. Step 4: Simplify right side
    17,877.80x = 401,666,176.86
  5. Step 5: Solve for x
    x = 401,666,176.86/17,877.80
  6. Step 6: Final answer
    x = 22,467.32

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.