Home / 21,839.66-30,142.73-14,292.69

Finding the Fourth Proportional to 21,839.66, 30,142.73 and 14,292.69

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Solution

The fourth proportional to 21,839.66, 30,142.73 and 14,292.69 is: 19,726.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,839.66 : 30,142.73 = 14,292.69 : x
  2. Step 2: Convert to fraction form
    21,839.66/30,142.73 = 14,292.69/x
  3. Step 3: Cross multiply
    21,839.66x = 30,142.73 × 14,292.69
  4. Step 4: Simplify right side
    21,839.66x = 430,820,695.64
  5. Step 5: Solve for x
    x = 430,820,695.64/21,839.66
  6. Step 6: Final answer
    x = 19,726.53

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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.