Home / 39,769.23-54,881.57-21,864.54

Finding the Fourth Proportional to 39,769.23, 54,881.57 and 21,864.54

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Solution

The fourth proportional to 39,769.23, 54,881.57 and 21,864.54 is: 30,173.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,769.23 : 54,881.57 = 21,864.54 : x
  2. Step 2: Convert to fraction form
    39,769.23/54,881.57 = 21,864.54/x
  3. Step 3: Cross multiply
    39,769.23x = 54,881.57 × 21,864.54
  4. Step 4: Simplify right side
    39,769.23x = 1,199,960,337.19
  5. Step 5: Solve for x
    x = 1,199,960,337.19/39,769.23
  6. Step 6: Final answer
    x = 30,173.08

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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.