Home / 39,534.16-54,556.32-21,629.12

Finding the Fourth Proportional to 39,534.16, 54,556.32 and 21,629.12

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Solution

The fourth proportional to 39,534.16, 54,556.32 and 21,629.12 is: 29,847.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,534.16 : 54,556.32 = 21,629.12 : x
  2. Step 2: Convert to fraction form
    39,534.16/54,556.32 = 21,629.12/x
  3. Step 3: Cross multiply
    39,534.16x = 54,556.32 × 21,629.12
  4. Step 4: Simplify right side
    39,534.16x = 1,180,005,192.04
  5. Step 5: Solve for x
    x = 1,180,005,192.04/39,534.16
  6. Step 6: Final answer
    x = 29,847.74

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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.