Home / 21,311.24-31,953.02-8,827.88

Finding the Fourth Proportional to 21,311.24, 31,953.02 and 8,827.88

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Solution

The fourth proportional to 21,311.24, 31,953.02 and 8,827.88 is: 13,236.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,311.24 : 31,953.02 = 8,827.88 : x
  2. Step 2: Convert to fraction form
    21,311.24/31,953.02 = 8,827.88/x
  3. Step 3: Cross multiply
    21,311.24x = 31,953.02 × 8,827.88
  4. Step 4: Simplify right side
    21,311.24x = 282,077,426.20
  5. Step 5: Solve for x
    x = 282,077,426.20/21,311.24
  6. Step 6: Final answer
    x = 13,236.09

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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.