Home / 17,820.20-26,730.30-16,653.80

Finding the Fourth Proportional to 17,820.20, 26,730.30 and 16,653.80

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Solution

The fourth proportional to 17,820.20, 26,730.30 and 16,653.80 is: 24,980.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,820.20 : 26,730.30 = 16,653.80 : x
  2. Step 2: Convert to fraction form
    17,820.20/26,730.30 = 16,653.80/x
  3. Step 3: Cross multiply
    17,820.20x = 26,730.30 × 16,653.80
  4. Step 4: Simplify right side
    17,820.20x = 445,161,070.14
  5. Step 5: Solve for x
    x = 445,161,070.14/17,820.20
  6. Step 6: Final answer
    x = 24,980.70

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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.