Home / 21,798.74-32,715.64-11,271.86

Finding the Fourth Proportional to 21,798.74, 32,715.64 and 11,271.86

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Solution

The fourth proportional to 21,798.74, 32,715.64 and 11,271.86 is: 16,916.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,798.74 : 32,715.64 = 11,271.86 : x
  2. Step 2: Convert to fraction form
    21,798.74/32,715.64 = 11,271.86/x
  3. Step 3: Cross multiply
    21,798.74x = 32,715.64 × 11,271.86
  4. Step 4: Simplify right side
    21,798.74x = 368,766,113.89
  5. Step 5: Solve for x
    x = 368,766,113.89/21,798.74
  6. Step 6: Final answer
    x = 16,916.85

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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.