Home / 30,836.36-42,549.62-18,084.72

Finding the Fourth Proportional to 30,836.36, 42,549.62 and 18,084.72

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Solution

The fourth proportional to 30,836.36, 42,549.62 and 18,084.72 is: 24,954.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,836.36 : 42,549.62 = 18,084.72 : x
  2. Step 2: Convert to fraction form
    30,836.36/42,549.62 = 18,084.72/x
  3. Step 3: Cross multiply
    30,836.36x = 42,549.62 × 18,084.72
  4. Step 4: Simplify right side
    30,836.36x = 769,497,963.81
  5. Step 5: Solve for x
    x = 769,497,963.81/30,836.36
  6. Step 6: Final answer
    x = 24,954.24

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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.