Home / 17,985.68-26,981.71-5,505.43

Finding the Fourth Proportional to 17,985.68, 26,981.71 and 5,505.43

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Solution

The fourth proportional to 17,985.68, 26,981.71 and 5,505.43 is: 8,259.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,985.68 : 26,981.71 = 5,505.43 : x
  2. Step 2: Convert to fraction form
    17,985.68/26,981.71 = 5,505.43/x
  3. Step 3: Cross multiply
    17,985.68x = 26,981.71 × 5,505.43
  4. Step 4: Simplify right side
    17,985.68x = 148,545,915.69
  5. Step 5: Solve for x
    x = 148,545,915.69/17,985.68
  6. Step 6: Final answer
    x = 8,259.12

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.