Home / 27,811.87-38,349.63-17,724.34

Finding the Fourth Proportional to 27,811.87, 38,349.63 and 17,724.34

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Solution

The fourth proportional to 27,811.87, 38,349.63 and 17,724.34 is: 24,439.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,811.87 : 38,349.63 = 17,724.34 : x
  2. Step 2: Convert to fraction form
    27,811.87/38,349.63 = 17,724.34/x
  3. Step 3: Cross multiply
    27,811.87x = 38,349.63 × 17,724.34
  4. Step 4: Simplify right side
    27,811.87x = 679,721,880.99
  5. Step 5: Solve for x
    x = 679,721,880.99/27,811.87
  6. Step 6: Final answer
    x = 24,439.99

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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.