Home / 43,389.10-65,090.58-13,396.28

Finding the Fourth Proportional to 43,389.10, 65,090.58 and 13,396.28

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Solution

The fourth proportional to 43,389.10, 65,090.58 and 13,396.28 is: 20,096.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,389.10 : 65,090.58 = 13,396.28 : x
  2. Step 2: Convert to fraction form
    43,389.10/65,090.58 = 13,396.28/x
  3. Step 3: Cross multiply
    43,389.10x = 65,090.58 × 13,396.28
  4. Step 4: Simplify right side
    43,389.10x = 871,971,797.77
  5. Step 5: Solve for x
    x = 871,971,797.77/43,389.10
  6. Step 6: Final answer
    x = 20,096.56

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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.