Home / 21,666.84-29,891.28-14,595.54

Finding the Fourth Proportional to 21,666.84, 29,891.28 and 14,595.54

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Solution

The fourth proportional to 21,666.84, 29,891.28 and 14,595.54 is: 20,135.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,666.84 : 29,891.28 = 14,595.54 : x
  2. Step 2: Convert to fraction form
    21,666.84/29,891.28 = 14,595.54/x
  3. Step 3: Cross multiply
    21,666.84x = 29,891.28 × 14,595.54
  4. Step 4: Simplify right side
    21,666.84x = 436,279,372.89
  5. Step 5: Solve for x
    x = 436,279,372.89/21,666.84
  6. Step 6: Final answer
    x = 20,135.81

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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.