Home / 39,561.43-54,595.41-21,656.13

Finding the Fourth Proportional to 39,561.43, 54,595.41 and 21,656.13

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Solution

The fourth proportional to 39,561.43, 54,595.41 and 21,656.13 is: 29,885.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,561.43 : 54,595.41 = 21,656.13 : x
  2. Step 2: Convert to fraction form
    39,561.43/54,595.41 = 21,656.13/x
  3. Step 3: Cross multiply
    39,561.43x = 54,595.41 × 21,656.13
  4. Step 4: Simplify right side
    39,561.43x = 1,182,325,023.39
  5. Step 5: Solve for x
    x = 1,182,325,023.39/39,561.43
  6. Step 6: Final answer
    x = 29,885.80

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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.