Home / 20,501.40-30,719.70-17,196.60

Finding the Fourth Proportional to 20,501.40, 30,719.70 and 17,196.60

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Solution

The fourth proportional to 20,501.40, 30,719.70 and 17,196.60 is: 25,767.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,501.40 : 30,719.70 = 17,196.60 : x
  2. Step 2: Convert to fraction form
    20,501.40/30,719.70 = 17,196.60/x
  3. Step 3: Cross multiply
    20,501.40x = 30,719.70 × 17,196.60
  4. Step 4: Simplify right side
    20,501.40x = 528,274,393.02
  5. Step 5: Solve for x
    x = 528,274,393.02/20,501.40
  6. Step 6: Final answer
    x = 25,767.72

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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.