Home / 19,990.26-27,703.24-19,708.38

Finding the Fourth Proportional to 19,990.26, 27,703.24 and 19,708.38

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Solution

The fourth proportional to 19,990.26, 27,703.24 and 19,708.38 is: 27,312.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,990.26 : 27,703.24 = 19,708.38 : x
  2. Step 2: Convert to fraction form
    19,990.26/27,703.24 = 19,708.38/x
  3. Step 3: Cross multiply
    19,990.26x = 27,703.24 × 19,708.38
  4. Step 4: Simplify right side
    19,990.26x = 545,985,981.15
  5. Step 5: Solve for x
    x = 545,985,981.15/19,990.26
  6. Step 6: Final answer
    x = 27,312.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.