Home / 21,573.84-29,764.94-12,140.58

Finding the Fourth Proportional to 21,573.84, 29,764.94 and 12,140.58

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Solution

The fourth proportional to 21,573.84, 29,764.94 and 12,140.58 is: 16,750.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,573.84 : 29,764.94 = 12,140.58 : x
  2. Step 2: Convert to fraction form
    21,573.84/29,764.94 = 12,140.58/x
  3. Step 3: Cross multiply
    21,573.84x = 29,764.94 × 12,140.58
  4. Step 4: Simplify right side
    21,573.84x = 361,363,486.44
  5. Step 5: Solve for x
    x = 361,363,486.44/21,573.84
  6. Step 6: Final answer
    x = 16,750.08

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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.