Home / 20,903.05-31,353.36-17,610.40

Finding the Fourth Proportional to 20,903.05, 31,353.36 and 17,610.40

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Solution

The fourth proportional to 20,903.05, 31,353.36 and 17,610.40 is: 26,414.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,903.05 : 31,353.36 = 17,610.40 : x
  2. Step 2: Convert to fraction form
    20,903.05/31,353.36 = 17,610.40/x
  3. Step 3: Cross multiply
    20,903.05x = 31,353.36 × 17,610.40
  4. Step 4: Simplify right side
    20,903.05x = 552,145,210.94
  5. Step 5: Solve for x
    x = 552,145,210.94/20,903.05
  6. Step 6: Final answer
    x = 26,414.58

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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.