Home / 29,284.15-40,411.64-15,855.30

Finding the Fourth Proportional to 29,284.15, 40,411.64 and 15,855.30

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Solution

The fourth proportional to 29,284.15, 40,411.64 and 15,855.30 is: 21,880.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,284.15 : 40,411.64 = 15,855.30 : x
  2. Step 2: Convert to fraction form
    29,284.15/40,411.64 = 15,855.30/x
  3. Step 3: Cross multiply
    29,284.15x = 40,411.64 × 15,855.30
  4. Step 4: Simplify right side
    29,284.15x = 640,738,394.36
  5. Step 5: Solve for x
    x = 640,738,394.36/29,284.15
  6. Step 6: Final answer
    x = 21,880.04

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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.