Home / 21,253.67-29,329.59-14,539.05

Finding the Fourth Proportional to 21,253.67, 29,329.59 and 14,539.05

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Solution

The fourth proportional to 21,253.67, 29,329.59 and 14,539.05 is: 20,063.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,253.67 : 29,329.59 = 14,539.05 : x
  2. Step 2: Convert to fraction form
    21,253.67/29,329.59 = 14,539.05/x
  3. Step 3: Cross multiply
    21,253.67x = 29,329.59 × 14,539.05
  4. Step 4: Simplify right side
    21,253.67x = 426,424,375.49
  5. Step 5: Solve for x
    x = 426,424,375.49/21,253.67
  6. Step 6: Final answer
    x = 20,063.56

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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.