Home / 30,156.41-45,220.24-13,516.58

Finding the Fourth Proportional to 30,156.41, 45,220.24 and 13,516.58

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Solution

The fourth proportional to 30,156.41, 45,220.24 and 13,516.58 is: 20,268.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,156.41 : 45,220.24 = 13,516.58 : x
  2. Step 2: Convert to fraction form
    30,156.41/45,220.24 = 13,516.58/x
  3. Step 3: Cross multiply
    30,156.41x = 45,220.24 × 13,516.58
  4. Step 4: Simplify right side
    30,156.41x = 611,222,991.58
  5. Step 5: Solve for x
    x = 611,222,991.58/30,156.41
  6. Step 6: Final answer
    x = 20,268.43

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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.