Home / 30,350.56-41,818.80-20,397.28

Finding the Fourth Proportional to 30,350.56, 41,818.80 and 20,397.28

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Solution

The fourth proportional to 30,350.56, 41,818.80 and 20,397.28 is: 28,104.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,350.56 : 41,818.80 = 20,397.28 : x
  2. Step 2: Convert to fraction form
    30,350.56/41,818.80 = 20,397.28/x
  3. Step 3: Cross multiply
    30,350.56x = 41,818.80 × 20,397.28
  4. Step 4: Simplify right side
    30,350.56x = 852,989,772.86
  5. Step 5: Solve for x
    x = 852,989,772.86/30,350.56
  6. Step 6: Final answer
    x = 28,104.58

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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.