Home / 21,301.88-29,365.85-14,908.68

Finding the Fourth Proportional to 21,301.88, 29,365.85 and 14,908.68

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Solution

The fourth proportional to 21,301.88, 29,365.85 and 14,908.68 is: 20,552.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,301.88 : 29,365.85 = 14,908.68 : x
  2. Step 2: Convert to fraction form
    21,301.88/29,365.85 = 14,908.68/x
  3. Step 3: Cross multiply
    21,301.88x = 29,365.85 × 14,908.68
  4. Step 4: Simplify right side
    21,301.88x = 437,805,986.03
  5. Step 5: Solve for x
    x = 437,805,986.03/21,301.88
  6. Step 6: Final answer
    x = 20,552.46

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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.