Home / 27,666.99-38,084.47-20,940.75

Finding the Fourth Proportional to 27,666.99, 38,084.47 and 20,940.75

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Solution

The fourth proportional to 27,666.99, 38,084.47 and 20,940.75 is: 28,825.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,666.99 : 38,084.47 = 20,940.75 : x
  2. Step 2: Convert to fraction form
    27,666.99/38,084.47 = 20,940.75/x
  3. Step 3: Cross multiply
    27,666.99x = 38,084.47 × 20,940.75
  4. Step 4: Simplify right side
    27,666.99x = 797,517,312.80
  5. Step 5: Solve for x
    x = 797,517,312.80/27,666.99
  6. Step 6: Final answer
    x = 28,825.59

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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.