Home / 20,681.24-28,545.18-11,733.98

Finding the Fourth Proportional to 20,681.24, 28,545.18 and 11,733.98

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Solution

The fourth proportional to 20,681.24, 28,545.18 and 11,733.98 is: 16,195.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,681.24 : 28,545.18 = 11,733.98 : x
  2. Step 2: Convert to fraction form
    20,681.24/28,545.18 = 11,733.98/x
  3. Step 3: Cross multiply
    20,681.24x = 28,545.18 × 11,733.98
  4. Step 4: Simplify right side
    20,681.24x = 334,948,642.58
  5. Step 5: Solve for x
    x = 334,948,642.58/20,681.24
  6. Step 6: Final answer
    x = 16,195.77

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.