Home / 20,237.73-27,931.44-12,285.24

Finding the Fourth Proportional to 20,237.73, 27,931.44 and 12,285.24

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Solution

The fourth proportional to 20,237.73, 27,931.44 and 12,285.24 is: 16,955.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,237.73 : 27,931.44 = 12,285.24 : x
  2. Step 2: Convert to fraction form
    20,237.73/27,931.44 = 12,285.24/x
  3. Step 3: Cross multiply
    20,237.73x = 27,931.44 × 12,285.24
  4. Step 4: Simplify right side
    20,237.73x = 343,144,443.95
  5. Step 5: Solve for x
    x = 343,144,443.95/20,237.73
  6. Step 6: Final answer
    x = 16,955.68

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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.