Home / 27,737.93-38,231.72-21,021.41

Finding the Fourth Proportional to 27,737.93, 38,231.72 and 21,021.41

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Solution

The fourth proportional to 27,737.93, 38,231.72 and 21,021.41 is: 28,974.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,737.93 : 38,231.72 = 21,021.41 : x
  2. Step 2: Convert to fraction form
    27,737.93/38,231.72 = 21,021.41/x
  3. Step 3: Cross multiply
    27,737.93x = 38,231.72 × 21,021.41
  4. Step 4: Simplify right side
    27,737.93x = 803,684,364.86
  5. Step 5: Solve for x
    x = 803,684,364.86/27,737.93
  6. Step 6: Final answer
    x = 28,974.21

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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.