Home / 38,814.39-53,569.53-21,820.03

Finding the Fourth Proportional to 38,814.39, 53,569.53 and 21,820.03

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Solution

The fourth proportional to 38,814.39, 53,569.53 and 21,820.03 is: 30,114.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,814.39 : 53,569.53 = 21,820.03 : x
  2. Step 2: Convert to fraction form
    38,814.39/53,569.53 = 21,820.03/x
  3. Step 3: Cross multiply
    38,814.39x = 53,569.53 × 21,820.03
  4. Step 4: Simplify right side
    38,814.39x = 1,168,888,751.69
  5. Step 5: Solve for x
    x = 1,168,888,751.69/38,814.39
  6. Step 6: Final answer
    x = 30,114.83

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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.