Home / 29,383.80-40,539.51-18,779.64

Finding the Fourth Proportional to 29,383.80, 40,539.51 and 18,779.64

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Solution

The fourth proportional to 29,383.80, 40,539.51 and 18,779.64 is: 25,909.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,383.80 : 40,539.51 = 18,779.64 : x
  2. Step 2: Convert to fraction form
    29,383.80/40,539.51 = 18,779.64/x
  3. Step 3: Cross multiply
    29,383.80x = 40,539.51 × 18,779.64
  4. Step 4: Simplify right side
    29,383.80x = 761,317,403.58
  5. Step 5: Solve for x
    x = 761,317,403.58/29,383.80
  6. Step 6: Final answer
    x = 25,909.43

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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.