Home / 28,405.24-39,199.38-16,475.64

Finding the Fourth Proportional to 28,405.24, 39,199.38 and 16,475.64

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Solution

The fourth proportional to 28,405.24, 39,199.38 and 16,475.64 is: 22,736.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,405.24 : 39,199.38 = 16,475.64 : x
  2. Step 2: Convert to fraction form
    28,405.24/39,199.38 = 16,475.64/x
  3. Step 3: Cross multiply
    28,405.24x = 39,199.38 × 16,475.64
  4. Step 4: Simplify right side
    28,405.24x = 645,834,873.10
  5. Step 5: Solve for x
    x = 645,834,873.10/28,405.24
  6. Step 6: Final answer
    x = 22,736.47

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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.