Home / 39,538.64-54,561.12-21,632.24

Finding the Fourth Proportional to 39,538.64, 54,561.12 and 21,632.24

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Solution

The fourth proportional to 39,538.64, 54,561.12 and 21,632.24 is: 29,851.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,538.64 : 54,561.12 = 21,632.24 : x
  2. Step 2: Convert to fraction form
    39,538.64/54,561.12 = 21,632.24/x
  3. Step 3: Cross multiply
    39,538.64x = 54,561.12 × 21,632.24
  4. Step 4: Simplify right side
    39,538.64x = 1,180,279,242.51
  5. Step 5: Solve for x
    x = 1,180,279,242.51/39,538.64
  6. Step 6: Final answer
    x = 29,851.29

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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.