Home / 21,975.39-30,297.48-14,003.78

Finding the Fourth Proportional to 21,975.39, 30,297.48 and 14,003.78

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Solution

The fourth proportional to 21,975.39, 30,297.48 and 14,003.78 is: 19,307.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,975.39 : 30,297.48 = 14,003.78 : x
  2. Step 2: Convert to fraction form
    21,975.39/30,297.48 = 14,003.78/x
  3. Step 3: Cross multiply
    21,975.39x = 30,297.48 × 14,003.78
  4. Step 4: Simplify right side
    21,975.39x = 424,279,092.99
  5. Step 5: Solve for x
    x = 424,279,092.99/21,975.39
  6. Step 6: Final answer
    x = 19,307.01

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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.