Home / 38,580.27-53,238.26-21,581.57

Finding the Fourth Proportional to 38,580.27, 53,238.26 and 21,581.57

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Solution

The fourth proportional to 38,580.27, 53,238.26 and 21,581.57 is: 29,781.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,580.27 : 53,238.26 = 21,581.57 : x
  2. Step 2: Convert to fraction form
    38,580.27/53,238.26 = 21,581.57/x
  3. Step 3: Cross multiply
    38,580.27x = 53,238.26 × 21,581.57
  4. Step 4: Simplify right side
    38,580.27x = 1,148,965,421.92
  5. Step 5: Solve for x
    x = 1,148,965,421.92/38,580.27
  6. Step 6: Final answer
    x = 29,781.17

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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.