Home / 27,391.94-37,800.41-15,291.79

Finding the Fourth Proportional to 27,391.94, 37,800.41 and 15,291.79

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Solution

The fourth proportional to 27,391.94, 37,800.41 and 15,291.79 is: 21,102.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,391.94 : 37,800.41 = 15,291.79 : x
  2. Step 2: Convert to fraction form
    27,391.94/37,800.41 = 15,291.79/x
  3. Step 3: Cross multiply
    27,391.94x = 37,800.41 × 15,291.79
  4. Step 4: Simplify right side
    27,391.94x = 578,035,760.67
  5. Step 5: Solve for x
    x = 578,035,760.67/27,391.94
  6. Step 6: Final answer
    x = 21,102.40

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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.