Home / 20,091.42-27,687.93-14,715.51

Finding the Fourth Proportional to 20,091.42, 27,687.93 and 14,715.51

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Solution

The fourth proportional to 20,091.42, 27,687.93 and 14,715.51 is: 20,279.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,091.42 : 27,687.93 = 14,715.51 : x
  2. Step 2: Convert to fraction form
    20,091.42/27,687.93 = 14,715.51/x
  3. Step 3: Cross multiply
    20,091.42x = 27,687.93 × 14,715.51
  4. Step 4: Simplify right side
    20,091.42x = 407,442,010.79
  5. Step 5: Solve for x
    x = 407,442,010.79/20,091.42
  6. Step 6: Final answer
    x = 20,279.40

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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.