Home / 25,396.40-35,050.16-15,330.60

Finding the Fourth Proportional to 25,396.40, 35,050.16 and 15,330.60

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Solution

The fourth proportional to 25,396.40, 35,050.16 and 15,330.60 is: 21,158.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,396.40 : 35,050.16 = 15,330.60 : x
  2. Step 2: Convert to fraction form
    25,396.40/35,050.16 = 15,330.60/x
  3. Step 3: Cross multiply
    25,396.40x = 35,050.16 × 15,330.60
  4. Step 4: Simplify right side
    25,396.40x = 537,339,982.90
  5. Step 5: Solve for x
    x = 537,339,982.90/25,396.40
  6. Step 6: Final answer
    x = 21,158.12

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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.