Home / 25,421.69-38,145.83-18,459.22

Finding the Fourth Proportional to 25,421.69, 38,145.83 and 18,459.22

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Solution

The fourth proportional to 25,421.69, 38,145.83 and 18,459.22 is: 27,698.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,421.69 : 38,145.83 = 18,459.22 : x
  2. Step 2: Convert to fraction form
    25,421.69/38,145.83 = 18,459.22/x
  3. Step 3: Cross multiply
    25,421.69x = 38,145.83 × 18,459.22
  4. Step 4: Simplify right side
    25,421.69x = 704,142,268.05
  5. Step 5: Solve for x
    x = 704,142,268.05/25,421.69
  6. Step 6: Final answer
    x = 27,698.48

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.