Home / 21,315.96-31,969.46-5,733.72

Finding the Fourth Proportional to 21,315.96, 31,969.46 and 5,733.72

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Solution

The fourth proportional to 21,315.96, 31,969.46 and 5,733.72 is: 8,599.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,315.96 : 31,969.46 = 5,733.72 : x
  2. Step 2: Convert to fraction form
    21,315.96/31,969.46 = 5,733.72/x
  3. Step 3: Cross multiply
    21,315.96x = 31,969.46 × 5,733.72
  4. Step 4: Simplify right side
    21,315.96x = 183,303,932.19
  5. Step 5: Solve for x
    x = 183,303,932.19/21,315.96
  6. Step 6: Final answer
    x = 8,599.37

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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.