Home / 17,820.40-26,698.20-14,515.60

Finding the Fourth Proportional to 17,820.40, 26,698.20 and 14,515.60

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Solution

The fourth proportional to 17,820.40, 26,698.20 and 14,515.60 is: 21,747.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,820.40 : 26,698.20 = 14,515.60 : x
  2. Step 2: Convert to fraction form
    17,820.40/26,698.20 = 14,515.60/x
  3. Step 3: Cross multiply
    17,820.40x = 26,698.20 × 14,515.60
  4. Step 4: Simplify right side
    17,820.40x = 387,540,391.92
  5. Step 5: Solve for x
    x = 387,540,391.92/17,820.40
  6. Step 6: Final answer
    x = 21,747.01

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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.