Home / 20,942.53-31,410.55-13,599.07

Finding the Fourth Proportional to 20,942.53, 31,410.55 and 13,599.07

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Solution

The fourth proportional to 20,942.53, 31,410.55 and 13,599.07 is: 20,396.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,942.53 : 31,410.55 = 13,599.07 : x
  2. Step 2: Convert to fraction form
    20,942.53/31,410.55 = 13,599.07/x
  3. Step 3: Cross multiply
    20,942.53x = 31,410.55 × 13,599.07
  4. Step 4: Simplify right side
    20,942.53x = 427,154,268.19
  5. Step 5: Solve for x
    x = 427,154,268.19/20,942.53
  6. Step 6: Final answer
    x = 20,396.50

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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.