Home / 21,148.54-29,184.85-11,717.08

Finding the Fourth Proportional to 21,148.54, 29,184.85 and 11,717.08

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Solution

The fourth proportional to 21,148.54, 29,184.85 and 11,717.08 is: 16,169.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,148.54 : 29,184.85 = 11,717.08 : x
  2. Step 2: Convert to fraction form
    21,148.54/29,184.85 = 11,717.08/x
  3. Step 3: Cross multiply
    21,148.54x = 29,184.85 × 11,717.08
  4. Step 4: Simplify right side
    21,148.54x = 341,961,222.24
  5. Step 5: Solve for x
    x = 341,961,222.24/21,148.54
  6. Step 6: Final answer
    x = 16,169.50

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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.