Home / 42,908.46-64,361.88-13,325.64

Finding the Fourth Proportional to 42,908.46, 64,361.88 and 13,325.64

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Solution

The fourth proportional to 42,908.46, 64,361.88 and 13,325.64 is: 19,988.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,908.46 : 64,361.88 = 13,325.64 : x
  2. Step 2: Convert to fraction form
    42,908.46/64,361.88 = 13,325.64/x
  3. Step 3: Cross multiply
    42,908.46x = 64,361.88 × 13,325.64
  4. Step 4: Simplify right side
    42,908.46x = 857,663,242.60
  5. Step 5: Solve for x
    x = 857,663,242.60/42,908.46
  6. Step 6: Final answer
    x = 19,988.21

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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.