Home / 21,164.28-31,750.30-17,250.26

Finding the Fourth Proportional to 21,164.28, 31,750.30 and 17,250.26

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Solution

The fourth proportional to 21,164.28, 31,750.30 and 17,250.26 is: 25,878.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,164.28 : 31,750.30 = 17,250.26 : x
  2. Step 2: Convert to fraction form
    21,164.28/31,750.30 = 17,250.26/x
  3. Step 3: Cross multiply
    21,164.28x = 31,750.30 × 17,250.26
  4. Step 4: Simplify right side
    21,164.28x = 547,700,792.89
  5. Step 5: Solve for x
    x = 547,700,792.89/21,164.28
  6. Step 6: Final answer
    x = 25,878.55

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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.