Home / 20,426.39-30,646.19-10,030.85

Finding the Fourth Proportional to 20,426.39, 30,646.19 and 10,030.85

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Solution

The fourth proportional to 20,426.39, 30,646.19 and 10,030.85 is: 15,049.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,426.39 : 30,646.19 = 10,030.85 : x
  2. Step 2: Convert to fraction form
    20,426.39/30,646.19 = 10,030.85/x
  3. Step 3: Cross multiply
    20,426.39x = 30,646.19 × 10,030.85
  4. Step 4: Simplify right side
    20,426.39x = 307,407,284.81
  5. Step 5: Solve for x
    x = 307,407,284.81/20,426.39
  6. Step 6: Final answer
    x = 15,049.52

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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.