Home / 20,697.89-31,043.34-5,903.43

Finding the Fourth Proportional to 20,697.89, 31,043.34 and 5,903.43

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Solution

The fourth proportional to 20,697.89, 31,043.34 and 5,903.43 is: 8,854.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,697.89 : 31,043.34 = 5,903.43 : x
  2. Step 2: Convert to fraction form
    20,697.89/31,043.34 = 5,903.43/x
  3. Step 3: Cross multiply
    20,697.89x = 31,043.34 × 5,903.43
  4. Step 4: Simplify right side
    20,697.89x = 183,262,184.66
  5. Step 5: Solve for x
    x = 183,262,184.66/20,697.89
  6. Step 6: Final answer
    x = 8,854.15

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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.