Home / 21,010.28-28,994.84-12,059.42

Finding the Fourth Proportional to 21,010.28, 28,994.84 and 12,059.42

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Solution

The fourth proportional to 21,010.28, 28,994.84 and 12,059.42 is: 16,642.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,010.28 : 28,994.84 = 12,059.42 : x
  2. Step 2: Convert to fraction form
    21,010.28/28,994.84 = 12,059.42/x
  3. Step 3: Cross multiply
    21,010.28x = 28,994.84 × 12,059.42
  4. Step 4: Simplify right side
    21,010.28x = 349,660,953.39
  5. Step 5: Solve for x
    x = 349,660,953.39/21,010.28
  6. Step 6: Final answer
    x = 16,642.37

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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.