Home / 20,317.73-28,037.14-11,363.68

Finding the Fourth Proportional to 20,317.73, 28,037.14 and 11,363.68

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Solution

The fourth proportional to 20,317.73, 28,037.14 and 11,363.68 is: 15,681.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,317.73 : 28,037.14 = 11,363.68 : x
  2. Step 2: Convert to fraction form
    20,317.73/28,037.14 = 11,363.68/x
  3. Step 3: Cross multiply
    20,317.73x = 28,037.14 × 11,363.68
  4. Step 4: Simplify right side
    20,317.73x = 318,604,890.07
  5. Step 5: Solve for x
    x = 318,604,890.07/20,317.73
  6. Step 6: Final answer
    x = 15,681.13

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1.5x scale

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.