Home / 25,418.48-35,047-21,875.60

Finding the Fourth Proportional to 25,418.48, 35,047 and 21,875.60

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Solution

The fourth proportional to 25,418.48, 35,047 and 21,875.60 is: 30,162.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,418.48 : 35,047 = 21,875.60 : x
  2. Step 2: Convert to fraction form
    25,418.48/35,047 = 21,875.60/x
  3. Step 3: Cross multiply
    25,418.48x = 35,047 × 21,875.60
  4. Step 4: Simplify right side
    25,418.48x = 766,674,153.20
  5. Step 5: Solve for x
    x = 766,674,153.20/25,418.48
  6. Step 6: Final answer
    x = 30,162.08

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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.