Home / 14,390.66-21,552.53-13,891.79

Finding the Fourth Proportional to 14,390.66, 21,552.53 and 13,891.79

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Solution

The fourth proportional to 14,390.66, 21,552.53 and 13,891.79 is: 20,805.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,390.66 : 21,552.53 = 13,891.79 : x
  2. Step 2: Convert to fraction form
    14,390.66/21,552.53 = 13,891.79/x
  3. Step 3: Cross multiply
    14,390.66x = 21,552.53 × 13,891.79
  4. Step 4: Simplify right side
    14,390.66x = 299,403,043.51
  5. Step 5: Solve for x
    x = 299,403,043.51/14,390.66
  6. Step 6: Final answer
    x = 20,805.38

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.