Home / 21,503.56-29,674.95-12,072.19

Finding the Fourth Proportional to 21,503.56, 29,674.95 and 12,072.19

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Solution

The fourth proportional to 21,503.56, 29,674.95 and 12,072.19 is: 16,659.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,503.56 : 29,674.95 = 12,072.19 : x
  2. Step 2: Convert to fraction form
    21,503.56/29,674.95 = 12,072.19/x
  3. Step 3: Cross multiply
    21,503.56x = 29,674.95 × 12,072.19
  4. Step 4: Simplify right side
    21,503.56x = 358,241,634.64
  5. Step 5: Solve for x
    x = 358,241,634.64/21,503.56
  6. Step 6: Final answer
    x = 16,659.64

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Half scale
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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.