Home / 21,184.42-31,776.84-6,393.46

Finding the Fourth Proportional to 21,184.42, 31,776.84 and 6,393.46

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Solution

The fourth proportional to 21,184.42, 31,776.84 and 6,393.46 is: 9,590.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,184.42 : 31,776.84 = 6,393.46 : x
  2. Step 2: Convert to fraction form
    21,184.42/31,776.84 = 6,393.46/x
  3. Step 3: Cross multiply
    21,184.42x = 31,776.84 × 6,393.46
  4. Step 4: Simplify right side
    21,184.42x = 203,163,876.02
  5. Step 5: Solve for x
    x = 203,163,876.02/21,184.42
  6. Step 6: Final answer
    x = 9,590.25

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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.