Home / 38,791.10-53,528.95-21,794.47

Finding the Fourth Proportional to 38,791.10, 53,528.95 and 21,794.47

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Solution

The fourth proportional to 38,791.10, 53,528.95 and 21,794.47 is: 30,074.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,791.10 : 53,528.95 = 21,794.47 : x
  2. Step 2: Convert to fraction form
    38,791.10/53,528.95 = 21,794.47/x
  3. Step 3: Cross multiply
    38,791.10x = 53,528.95 × 21,794.47
  4. Step 4: Simplify right side
    38,791.10x = 1,166,634,988.33
  5. Step 5: Solve for x
    x = 1,166,634,988.33/38,791.10
  6. Step 6: Final answer
    x = 30,074.81

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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.