Home / 20,201.43-30,315.12-9,807.51

Finding the Fourth Proportional to 20,201.43, 30,315.12 and 9,807.51

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Solution

The fourth proportional to 20,201.43, 30,315.12 and 9,807.51 is: 14,717.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,201.43 : 30,315.12 = 9,807.51 : x
  2. Step 2: Convert to fraction form
    20,201.43/30,315.12 = 9,807.51/x
  3. Step 3: Cross multiply
    20,201.43x = 30,315.12 × 9,807.51
  4. Step 4: Simplify right side
    20,201.43x = 297,315,842.55
  5. Step 5: Solve for x
    x = 297,315,842.55/20,201.43
  6. Step 6: Final answer
    x = 14,717.56

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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.