Home / 20,335.54-30,503.31-5,543.86

Finding the Fourth Proportional to 20,335.54, 30,503.31 and 5,543.86

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Solution

The fourth proportional to 20,335.54, 30,503.31 and 5,543.86 is: 8,315.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,335.54 : 30,503.31 = 5,543.86 : x
  2. Step 2: Convert to fraction form
    20,335.54/30,503.31 = 5,543.86/x
  3. Step 3: Cross multiply
    20,335.54x = 30,503.31 × 5,543.86
  4. Step 4: Simplify right side
    20,335.54x = 169,106,080.18
  5. Step 5: Solve for x
    x = 169,106,080.18/20,335.54
  6. Step 6: Final answer
    x = 8,315.79

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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.