Home / 21,184.68-31,777.23-6,393.72

Finding the Fourth Proportional to 21,184.68, 31,777.23 and 6,393.72

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Solution

The fourth proportional to 21,184.68, 31,777.23 and 6,393.72 is: 9,590.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,184.68 : 31,777.23 = 6,393.72 : x
  2. Step 2: Convert to fraction form
    21,184.68/31,777.23 = 6,393.72/x
  3. Step 3: Cross multiply
    21,184.68x = 31,777.23 × 6,393.72
  4. Step 4: Simplify right side
    21,184.68x = 203,174,711.00
  5. Step 5: Solve for x
    x = 203,174,711.00/21,184.68
  6. Step 6: Final answer
    x = 9,590.64

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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.