Home / 21,367.23-29,490.86-14,086.55

Finding the Fourth Proportional to 21,367.23, 29,490.86 and 14,086.55

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Solution

The fourth proportional to 21,367.23, 29,490.86 and 14,086.55 is: 19,442.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,367.23 : 29,490.86 = 14,086.55 : x
  2. Step 2: Convert to fraction form
    21,367.23/29,490.86 = 14,086.55/x
  3. Step 3: Cross multiply
    21,367.23x = 29,490.86 × 14,086.55
  4. Step 4: Simplify right side
    21,367.23x = 415,424,472.29
  5. Step 5: Solve for x
    x = 415,424,472.29/21,367.23
  6. Step 6: Final answer
    x = 19,442.13

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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.