Home / 21,483.38-32,223.77-12,773.72

Finding the Fourth Proportional to 21,483.38, 32,223.77 and 12,773.72

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Solution

The fourth proportional to 21,483.38, 32,223.77 and 12,773.72 is: 19,159.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,483.38 : 32,223.77 = 12,773.72 : x
  2. Step 2: Convert to fraction form
    21,483.38/32,223.77 = 12,773.72/x
  3. Step 3: Cross multiply
    21,483.38x = 32,223.77 × 12,773.72
  4. Step 4: Simplify right side
    21,483.38x = 411,617,222.27
  5. Step 5: Solve for x
    x = 411,617,222.27/21,483.38
  6. Step 6: Final answer
    x = 19,159.80

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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.