Home / 25,647.48-35,314.58-21,862.16

Finding the Fourth Proportional to 25,647.48, 35,314.58 and 21,862.16

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Solution

The fourth proportional to 25,647.48, 35,314.58 and 21,862.16 is: 30,102.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,647.48 : 35,314.58 = 21,862.16 : x
  2. Step 2: Convert to fraction form
    25,647.48/35,314.58 = 21,862.16/x
  3. Step 3: Cross multiply
    25,647.48x = 35,314.58 × 21,862.16
  4. Step 4: Simplify right side
    25,647.48x = 772,052,712.41
  5. Step 5: Solve for x
    x = 772,052,712.41/25,647.48
  6. Step 6: Final answer
    x = 30,102.48

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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.