Home / 38,515.93-53,151.62-21,523.10

Finding the Fourth Proportional to 38,515.93, 53,151.62 and 21,523.10

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Solution

The fourth proportional to 38,515.93, 53,151.62 and 21,523.10 is: 29,701.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,515.93 : 53,151.62 = 21,523.10 : x
  2. Step 2: Convert to fraction form
    38,515.93/53,151.62 = 21,523.10/x
  3. Step 3: Cross multiply
    38,515.93x = 53,151.62 × 21,523.10
  4. Step 4: Simplify right side
    38,515.93x = 1,143,987,738.40
  5. Step 5: Solve for x
    x = 1,143,987,738.40/38,515.93
  6. Step 6: Final answer
    x = 29,701.68

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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.