Home / 21,781.66-30,075.62-16,737.94

Finding the Fourth Proportional to 21,781.66, 30,075.62 and 16,737.94

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Solution

The fourth proportional to 21,781.66, 30,075.62 and 16,737.94 is: 23,111.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,781.66 : 30,075.62 = 16,737.94 : x
  2. Step 2: Convert to fraction form
    21,781.66/30,075.62 = 16,737.94/x
  3. Step 3: Cross multiply
    21,781.66x = 30,075.62 × 16,737.94
  4. Step 4: Simplify right side
    21,781.66x = 503,403,923.02
  5. Step 5: Solve for x
    x = 503,403,923.02/21,781.66
  6. Step 6: Final answer
    x = 23,111.37

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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.