Home / 38,577.64-53,238.18-21,581.32

Finding the Fourth Proportional to 38,577.64, 53,238.18 and 21,581.32

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Solution

The fourth proportional to 38,577.64, 53,238.18 and 21,581.32 is: 29,782.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,577.64 : 53,238.18 = 21,581.32 : x
  2. Step 2: Convert to fraction form
    38,577.64/53,238.18 = 21,581.32/x
  3. Step 3: Cross multiply
    38,577.64x = 53,238.18 × 21,581.32
  4. Step 4: Simplify right side
    38,577.64x = 1,148,950,198.80
  5. Step 5: Solve for x
    x = 1,148,950,198.80/38,577.64
  6. Step 6: Final answer
    x = 29,782.80

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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.