Home / 25,419.48-35,048.38-21,876.60

Finding the Fourth Proportional to 25,419.48, 35,048.38 and 21,876.60

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Solution

The fourth proportional to 25,419.48, 35,048.38 and 21,876.60 is: 30,163.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,419.48 : 35,048.38 = 21,876.60 : x
  2. Step 2: Convert to fraction form
    25,419.48/35,048.38 = 21,876.60/x
  3. Step 3: Cross multiply
    25,419.48x = 35,048.38 × 21,876.60
  4. Step 4: Simplify right side
    25,419.48x = 766,739,389.91
  5. Step 5: Solve for x
    x = 766,739,389.91/25,419.48
  6. Step 6: Final answer
    x = 30,163.46

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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.