Home / 29,284.25-40,412.25-15,855.62

Finding the Fourth Proportional to 29,284.25, 40,412.25 and 15,855.62

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Solution

The fourth proportional to 29,284.25, 40,412.25 and 15,855.62 is: 21,880.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,284.25 : 40,412.25 = 15,855.62 : x
  2. Step 2: Convert to fraction form
    29,284.25/40,412.25 = 15,855.62/x
  3. Step 3: Cross multiply
    29,284.25x = 40,412.25 × 15,855.62
  4. Step 4: Simplify right side
    29,284.25x = 640,761,077.28
  5. Step 5: Solve for x
    x = 640,761,077.28/29,284.25
  6. Step 6: Final answer
    x = 21,880.74

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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.