Home / 17,790.66-26,686.62-13,638.24

Finding the Fourth Proportional to 17,790.66, 26,686.62 and 13,638.24

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Solution

The fourth proportional to 17,790.66, 26,686.62 and 13,638.24 is: 20,457.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,790.66 : 26,686.62 = 13,638.24 : x
  2. Step 2: Convert to fraction form
    17,790.66/26,686.62 = 13,638.24/x
  3. Step 3: Cross multiply
    17,790.66x = 26,686.62 × 13,638.24
  4. Step 4: Simplify right side
    17,790.66x = 363,958,528.35
  5. Step 5: Solve for x
    x = 363,958,528.35/17,790.66
  6. Step 6: Final answer
    x = 20,457.84

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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.