Home / 17,818.40-26,727.60-13,671.20

Finding the Fourth Proportional to 17,818.40, 26,727.60 and 13,671.20

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Solution

The fourth proportional to 17,818.40, 26,727.60 and 13,671.20 is: 20,506.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,818.40 : 26,727.60 = 13,671.20 : x
  2. Step 2: Convert to fraction form
    17,818.40/26,727.60 = 13,671.20/x
  3. Step 3: Cross multiply
    17,818.40x = 26,727.60 × 13,671.20
  4. Step 4: Simplify right side
    17,818.40x = 365,398,365.12
  5. Step 5: Solve for x
    x = 365,398,365.12/17,818.40
  6. Step 6: Final answer
    x = 20,506.80

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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.