Home / 21,156.24-31,733.16-6,364.84

Finding the Fourth Proportional to 21,156.24, 31,733.16 and 6,364.84

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Solution

The fourth proportional to 21,156.24, 31,733.16 and 6,364.84 is: 9,546.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,156.24 : 31,733.16 = 6,364.84 : x
  2. Step 2: Convert to fraction form
    21,156.24/31,733.16 = 6,364.84/x
  3. Step 3: Cross multiply
    21,156.24x = 31,733.16 × 6,364.84
  4. Step 4: Simplify right side
    21,156.24x = 201,976,486.09
  5. Step 5: Solve for x
    x = 201,976,486.09/21,156.24
  6. Step 6: Final answer
    x = 9,546.90

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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.