Home / 25,120.75-34,666.65-13,942.75

Finding the Fourth Proportional to 25,120.75, 34,666.65 and 13,942.75

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Solution

The fourth proportional to 25,120.75, 34,666.65 and 13,942.75 is: 19,241.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,120.75 : 34,666.65 = 13,942.75 : x
  2. Step 2: Convert to fraction form
    25,120.75/34,666.65 = 13,942.75/x
  3. Step 3: Cross multiply
    25,120.75x = 34,666.65 × 13,942.75
  4. Step 4: Simplify right side
    25,120.75x = 483,348,434.29
  5. Step 5: Solve for x
    x = 483,348,434.29/25,120.75
  6. Step 6: Final answer
    x = 19,241.00

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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.