Home / 20,047.40-27,623.94-14,085.80

Finding the Fourth Proportional to 20,047.40, 27,623.94 and 14,085.80

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Solution

The fourth proportional to 20,047.40, 27,623.94 and 14,085.80 is: 19,409.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,047.40 : 27,623.94 = 14,085.80 : x
  2. Step 2: Convert to fraction form
    20,047.40/27,623.94 = 14,085.80/x
  3. Step 3: Cross multiply
    20,047.40x = 27,623.94 × 14,085.80
  4. Step 4: Simplify right side
    20,047.40x = 389,105,294.05
  5. Step 5: Solve for x
    x = 389,105,294.05/20,047.40
  6. Step 6: Final answer
    x = 19,409.26

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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.