Home / 22,756.22-31,434.21-20,634.14

Finding the Fourth Proportional to 22,756.22, 31,434.21 and 20,634.14

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Solution

The fourth proportional to 22,756.22, 31,434.21 and 20,634.14 is: 28,502.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,756.22 : 31,434.21 = 20,634.14 : x
  2. Step 2: Convert to fraction form
    22,756.22/31,434.21 = 20,634.14/x
  3. Step 3: Cross multiply
    22,756.22x = 31,434.21 × 20,634.14
  4. Step 4: Simplify right side
    22,756.22x = 648,617,732.76
  5. Step 5: Solve for x
    x = 648,617,732.76/22,756.22
  6. Step 6: Final answer
    x = 28,502.88

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.