Home / 21,152.94-29,167.45-14,442.09

Finding the Fourth Proportional to 21,152.94, 29,167.45 and 14,442.09

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Solution

The fourth proportional to 21,152.94, 29,167.45 and 14,442.09 is: 19,913.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,152.94 : 29,167.45 = 14,442.09 : x
  2. Step 2: Convert to fraction form
    21,152.94/29,167.45 = 14,442.09/x
  3. Step 3: Cross multiply
    21,152.94x = 29,167.45 × 14,442.09
  4. Step 4: Simplify right side
    21,152.94x = 421,238,937.97
  5. Step 5: Solve for x
    x = 421,238,937.97/21,152.94
  6. Step 6: Final answer
    x = 19,913.97

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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.