Home / 21,503.54-29,674.91-12,072.11

Finding the Fourth Proportional to 21,503.54, 29,674.91 and 12,072.11

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Solution

The fourth proportional to 21,503.54, 29,674.91 and 12,072.11 is: 16,659.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,503.54 : 29,674.91 = 12,072.11 : x
  2. Step 2: Convert to fraction form
    21,503.54/29,674.91 = 12,072.11/x
  3. Step 3: Cross multiply
    21,503.54x = 29,674.91 × 12,072.11
  4. Step 4: Simplify right side
    21,503.54x = 358,238,659.57
  5. Step 5: Solve for x
    x = 358,238,659.57/21,503.54
  6. Step 6: Final answer
    x = 16,659.52

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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.