Home / 38,416.13-53,010.36-21,418.76

Finding the Fourth Proportional to 38,416.13, 53,010.36 and 21,418.76

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Solution

The fourth proportional to 38,416.13, 53,010.36 and 21,418.76 is: 29,555.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,416.13 : 53,010.36 = 21,418.76 : x
  2. Step 2: Convert to fraction form
    38,416.13/53,010.36 = 21,418.76/x
  3. Step 3: Cross multiply
    38,416.13x = 53,010.36 × 21,418.76
  4. Step 4: Simplify right side
    38,416.13x = 1,135,415,913.30
  5. Step 5: Solve for x
    x = 1,135,415,913.30/38,416.13
  6. Step 6: Final answer
    x = 29,555.71

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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.