Home / 29,284.02-40,411.97-15,855.28

Finding the Fourth Proportional to 29,284.02, 40,411.97 and 15,855.28

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Solution

The fourth proportional to 29,284.02, 40,411.97 and 15,855.28 is: 21,880.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,284.02 : 40,411.97 = 15,855.28 : x
  2. Step 2: Convert to fraction form
    29,284.02/40,411.97 = 15,855.28/x
  3. Step 3: Cross multiply
    29,284.02x = 40,411.97 × 15,855.28
  4. Step 4: Simplify right side
    29,284.02x = 640,743,099.70
  5. Step 5: Solve for x
    x = 640,743,099.70/29,284.02
  6. Step 6: Final answer
    x = 21,880.30

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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.