Home / 22,147.16-30,570.48-13,197.47

Finding the Fourth Proportional to 22,147.16, 30,570.48 and 13,197.47

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Solution

The fourth proportional to 22,147.16, 30,570.48 and 13,197.47 is: 18,216.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,147.16 : 30,570.48 = 13,197.47 : x
  2. Step 2: Convert to fraction form
    22,147.16/30,570.48 = 13,197.47/x
  3. Step 3: Cross multiply
    22,147.16x = 30,570.48 × 13,197.47
  4. Step 4: Simplify right side
    22,147.16x = 403,452,839.83
  5. Step 5: Solve for x
    x = 403,452,839.83/22,147.16
  6. Step 6: Final answer
    x = 18,216.91

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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.