Home / 29,286.84-40,415.93-15,857.99

Finding the Fourth Proportional to 29,286.84, 40,415.93 and 15,857.99

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Solution

The fourth proportional to 29,286.84, 40,415.93 and 15,857.99 is: 21,884.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,286.84 : 40,415.93 = 15,857.99 : x
  2. Step 2: Convert to fraction form
    29,286.84/40,415.93 = 15,857.99/x
  3. Step 3: Cross multiply
    29,286.84x = 40,415.93 × 15,857.99
  4. Step 4: Simplify right side
    29,286.84x = 640,915,132.41
  5. Step 5: Solve for x
    x = 640,915,132.41/29,286.84
  6. Step 6: Final answer
    x = 21,884.07

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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.