Home / 25,455.30-35,140.38-16,971.60

Finding the Fourth Proportional to 25,455.30, 35,140.38 and 16,971.60

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Solution

The fourth proportional to 25,455.30, 35,140.38 and 16,971.60 is: 23,428.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,455.30 : 35,140.38 = 16,971.60 : x
  2. Step 2: Convert to fraction form
    25,455.30/35,140.38 = 16,971.60/x
  3. Step 3: Cross multiply
    25,455.30x = 35,140.38 × 16,971.60
  4. Step 4: Simplify right side
    25,455.30x = 596,388,473.21
  5. Step 5: Solve for x
    x = 596,388,473.21/25,455.30
  6. Step 6: Final answer
    x = 23,428.85

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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.