Home / 21,720.02-29,926.80-14,634.14

Finding the Fourth Proportional to 21,720.02, 29,926.80 and 14,634.14

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Solution

The fourth proportional to 21,720.02, 29,926.80 and 14,634.14 is: 20,163.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,720.02 : 29,926.80 = 14,634.14 : x
  2. Step 2: Convert to fraction form
    21,720.02/29,926.80 = 14,634.14/x
  3. Step 3: Cross multiply
    21,720.02x = 29,926.80 × 14,634.14
  4. Step 4: Simplify right side
    21,720.02x = 437,952,831.32
  5. Step 5: Solve for x
    x = 437,952,831.32/21,720.02
  6. Step 6: Final answer
    x = 20,163.56

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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.