Home / 21,670.48-29,885.24-16,634.91

Finding the Fourth Proportional to 21,670.48, 29,885.24 and 16,634.91

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Solution

The fourth proportional to 21,670.48, 29,885.24 and 16,634.91 is: 22,940.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,670.48 : 29,885.24 = 16,634.91 : x
  2. Step 2: Convert to fraction form
    21,670.48/29,885.24 = 16,634.91/x
  3. Step 3: Cross multiply
    21,670.48x = 29,885.24 × 16,634.91
  4. Step 4: Simplify right side
    21,670.48x = 497,138,263.28
  5. Step 5: Solve for x
    x = 497,138,263.28/21,670.48
  6. Step 6: Final answer
    x = 22,940.81

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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.