Home / 20,248.59-27,946.13-12,289.27

Finding the Fourth Proportional to 20,248.59, 27,946.13 and 12,289.27

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Solution

The fourth proportional to 20,248.59, 27,946.13 and 12,289.27 is: 16,961.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,248.59 : 27,946.13 = 12,289.27 : x
  2. Step 2: Convert to fraction form
    20,248.59/27,946.13 = 12,289.27/x
  3. Step 3: Cross multiply
    20,248.59x = 27,946.13 × 12,289.27
  4. Step 4: Simplify right side
    20,248.59x = 343,437,537.03
  5. Step 5: Solve for x
    x = 343,437,537.03/20,248.59
  6. Step 6: Final answer
    x = 16,961.06

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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.