Home / 30,426.03-41,965.70-20,336.74

Finding the Fourth Proportional to 30,426.03, 41,965.70 and 20,336.74

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Solution

The fourth proportional to 30,426.03, 41,965.70 and 20,336.74 is: 28,049.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,426.03 : 41,965.70 = 20,336.74 : x
  2. Step 2: Convert to fraction form
    30,426.03/41,965.70 = 20,336.74/x
  3. Step 3: Cross multiply
    30,426.03x = 41,965.70 × 20,336.74
  4. Step 4: Simplify right side
    30,426.03x = 853,445,323.22
  5. Step 5: Solve for x
    x = 853,445,323.22/30,426.03
  6. Step 6: Final answer
    x = 28,049.84

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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.