Home / 20,397.39-30,426.58-20,059.06

Finding the Fourth Proportional to 20,397.39, 30,426.58 and 20,059.06

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Solution

The fourth proportional to 20,397.39, 30,426.58 and 20,059.06 is: 29,921.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,397.39 : 30,426.58 = 20,059.06 : x
  2. Step 2: Convert to fraction form
    20,397.39/30,426.58 = 20,059.06/x
  3. Step 3: Cross multiply
    20,397.39x = 30,426.58 × 20,059.06
  4. Step 4: Simplify right side
    20,397.39x = 610,328,593.81
  5. Step 5: Solve for x
    x = 610,328,593.81/20,397.39
  6. Step 6: Final answer
    x = 29,921.90

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.