Home / 21,548.38-29,736.57-12,117.01

Finding the Fourth Proportional to 21,548.38, 29,736.57 and 12,117.01

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Solution

The fourth proportional to 21,548.38, 29,736.57 and 12,117.01 is: 16,721.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,548.38 : 29,736.57 = 12,117.01 : x
  2. Step 2: Convert to fraction form
    21,548.38/29,736.57 = 12,117.01/x
  3. Step 3: Cross multiply
    21,548.38x = 29,736.57 × 12,117.01
  4. Step 4: Simplify right side
    21,548.38x = 360,318,316.06
  5. Step 5: Solve for x
    x = 360,318,316.06/21,548.38
  6. Step 6: Final answer
    x = 16,721.36

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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.