Home / 38,814.56-53,565.60-21,819.14

Finding the Fourth Proportional to 38,814.56, 53,565.60 and 21,819.14

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Solution

The fourth proportional to 38,814.56, 53,565.60 and 21,819.14 is: 30,111.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,814.56 : 53,565.60 = 21,819.14 : x
  2. Step 2: Convert to fraction form
    38,814.56/53,565.60 = 21,819.14/x
  3. Step 3: Cross multiply
    38,814.56x = 53,565.60 × 21,819.14
  4. Step 4: Simplify right side
    38,814.56x = 1,168,755,057.76
  5. Step 5: Solve for x
    x = 1,168,755,057.76/38,814.56
  6. Step 6: Final answer
    x = 30,111.26

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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.