Home / 17,886.30-26,829.45-13,220.70

Finding the Fourth Proportional to 17,886.30, 26,829.45 and 13,220.70

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Solution

The fourth proportional to 17,886.30, 26,829.45 and 13,220.70 is: 19,831.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,886.30 : 26,829.45 = 13,220.70 : x
  2. Step 2: Convert to fraction form
    17,886.30/26,829.45 = 13,220.70/x
  3. Step 3: Cross multiply
    17,886.30x = 26,829.45 × 13,220.70
  4. Step 4: Simplify right side
    17,886.30x = 354,704,109.62
  5. Step 5: Solve for x
    x = 354,704,109.62/17,886.30
  6. Step 6: Final answer
    x = 19,831.05

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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.