Home / 21,397.59-29,528.15-11,838.02

Finding the Fourth Proportional to 21,397.59, 29,528.15 and 11,838.02

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Solution

The fourth proportional to 21,397.59, 29,528.15 and 11,838.02 is: 16,336.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,397.59 : 29,528.15 = 11,838.02 : x
  2. Step 2: Convert to fraction form
    21,397.59/29,528.15 = 11,838.02/x
  3. Step 3: Cross multiply
    21,397.59x = 29,528.15 × 11,838.02
  4. Step 4: Simplify right side
    21,397.59x = 349,554,623.43
  5. Step 5: Solve for x
    x = 349,554,623.43/21,397.59
  6. Step 6: Final answer
    x = 16,336.17

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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.