Home / 30,165.28-45,257.64-21,392.98

Finding the Fourth Proportional to 30,165.28, 45,257.64 and 21,392.98

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Solution

The fourth proportional to 30,165.28, 45,257.64 and 21,392.98 is: 32,096.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,165.28 : 45,257.64 = 21,392.98 : x
  2. Step 2: Convert to fraction form
    30,165.28/45,257.64 = 21,392.98/x
  3. Step 3: Cross multiply
    30,165.28x = 45,257.64 × 21,392.98
  4. Step 4: Simplify right side
    30,165.28x = 968,195,787.37
  5. Step 5: Solve for x
    x = 968,195,787.37/30,165.28
  6. Step 6: Final answer
    x = 32,096.36

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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.