Home / 15,515.95-23,284.32-5,520.31

Finding the Fourth Proportional to 15,515.95, 23,284.32 and 5,520.31

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Solution

The fourth proportional to 15,515.95, 23,284.32 and 5,520.31 is: 8,284.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,515.95 : 23,284.32 = 5,520.31 : x
  2. Step 2: Convert to fraction form
    15,515.95/23,284.32 = 5,520.31/x
  3. Step 3: Cross multiply
    15,515.95x = 23,284.32 × 5,520.31
  4. Step 4: Simplify right side
    15,515.95x = 128,536,664.54
  5. Step 5: Solve for x
    x = 128,536,664.54/15,515.95
  6. Step 6: Final answer
    x = 8,284.16

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.