Home / 25,112.22-34,655.75-13,782.21

Finding the Fourth Proportional to 25,112.22, 34,655.75 and 13,782.21

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Solution

The fourth proportional to 25,112.22, 34,655.75 and 13,782.21 is: 19,019.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,112.22 : 34,655.75 = 13,782.21 : x
  2. Step 2: Convert to fraction form
    25,112.22/34,655.75 = 13,782.21/x
  3. Step 3: Cross multiply
    25,112.22x = 34,655.75 × 13,782.21
  4. Step 4: Simplify right side
    25,112.22x = 477,632,824.21
  5. Step 5: Solve for x
    x = 477,632,824.21/25,112.22
  6. Step 6: Final answer
    x = 19,019.94

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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.