Home / 21,101.06-29,126.79-12,152.13

Finding the Fourth Proportional to 21,101.06, 29,126.79 and 12,152.13

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Solution

The fourth proportional to 21,101.06, 29,126.79 and 12,152.13 is: 16,774.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,101.06 : 29,126.79 = 12,152.13 : x
  2. Step 2: Convert to fraction form
    21,101.06/29,126.79 = 12,152.13/x
  3. Step 3: Cross multiply
    21,101.06x = 29,126.79 × 12,152.13
  4. Step 4: Simplify right side
    21,101.06x = 353,952,538.56
  5. Step 5: Solve for x
    x = 353,952,538.56/21,101.06
  6. Step 6: Final answer
    x = 16,774.16

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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.