Home / 32,838.24-45,321.92-20,889.12

Finding the Fourth Proportional to 32,838.24, 45,321.92 and 20,889.12

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Solution

The fourth proportional to 32,838.24, 45,321.92 and 20,889.12 is: 28,830.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,838.24 : 45,321.92 = 20,889.12 : x
  2. Step 2: Convert to fraction form
    32,838.24/45,321.92 = 20,889.12/x
  3. Step 3: Cross multiply
    32,838.24x = 45,321.92 × 20,889.12
  4. Step 4: Simplify right side
    32,838.24x = 946,735,025.51
  5. Step 5: Solve for x
    x = 946,735,025.51/32,838.24
  6. Step 6: Final answer
    x = 28,830.26

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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.