Home / 20,691.15-31,041.88-5,900.19

Finding the Fourth Proportional to 20,691.15, 31,041.88 and 5,900.19

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Solution

The fourth proportional to 20,691.15, 31,041.88 and 5,900.19 is: 8,851.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,691.15 : 31,041.88 = 5,900.19 : x
  2. Step 2: Convert to fraction form
    20,691.15/31,041.88 = 5,900.19/x
  3. Step 3: Cross multiply
    20,691.15x = 31,041.88 × 5,900.19
  4. Step 4: Simplify right side
    20,691.15x = 183,153,066.60
  5. Step 5: Solve for x
    x = 183,153,066.60/20,691.15
  6. Step 6: Final answer
    x = 8,851.76

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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.