Home / 21,212.06-29,271.35-11,650.08

Finding the Fourth Proportional to 21,212.06, 29,271.35 and 11,650.08

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Solution

The fourth proportional to 21,212.06, 29,271.35 and 11,650.08 is: 16,076.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,212.06 : 29,271.35 = 11,650.08 : x
  2. Step 2: Convert to fraction form
    21,212.06/29,271.35 = 11,650.08/x
  3. Step 3: Cross multiply
    21,212.06x = 29,271.35 × 11,650.08
  4. Step 4: Simplify right side
    21,212.06x = 341,013,569.21
  5. Step 5: Solve for x
    x = 341,013,569.21/21,212.06
  6. Step 6: Final answer
    x = 16,076.40

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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.