Home / 27,940.81-38,526.83-20,373.79

Finding the Fourth Proportional to 27,940.81, 38,526.83 and 20,373.79

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Solution

The fourth proportional to 27,940.81, 38,526.83 and 20,373.79 is: 28,092.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,940.81 : 38,526.83 = 20,373.79 : x
  2. Step 2: Convert to fraction form
    27,940.81/38,526.83 = 20,373.79/x
  3. Step 3: Cross multiply
    27,940.81x = 38,526.83 × 20,373.79
  4. Step 4: Simplify right side
    27,940.81x = 784,937,441.92
  5. Step 5: Solve for x
    x = 784,937,441.92/27,940.81
  6. Step 6: Final answer
    x = 28,092.87

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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.