Home / 21,396.80-32,097.90-8,258.34

Finding the Fourth Proportional to 21,396.80, 32,097.90 and 8,258.34

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Solution

The fourth proportional to 21,396.80, 32,097.90 and 8,258.34 is: 12,388.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,396.80 : 32,097.90 = 8,258.34 : x
  2. Step 2: Convert to fraction form
    21,396.80/32,097.90 = 8,258.34/x
  3. Step 3: Cross multiply
    21,396.80x = 32,097.90 × 8,258.34
  4. Step 4: Simplify right side
    21,396.80x = 265,075,371.49
  5. Step 5: Solve for x
    x = 265,075,371.49/21,396.80
  6. Step 6: Final answer
    x = 12,388.55

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.