Home / 25,112.70-34,655.19-13,782.30

Finding the Fourth Proportional to 25,112.70, 34,655.19 and 13,782.30

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Solution

The fourth proportional to 25,112.70, 34,655.19 and 13,782.30 is: 19,019.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,112.70 : 34,655.19 = 13,782.30 : x
  2. Step 2: Convert to fraction form
    25,112.70/34,655.19 = 13,782.30/x
  3. Step 3: Cross multiply
    25,112.70x = 34,655.19 × 13,782.30
  4. Step 4: Simplify right side
    25,112.70x = 477,628,225.14
  5. Step 5: Solve for x
    x = 477,628,225.14/25,112.70
  6. Step 6: Final answer
    x = 19,019.39

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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.