Home / 19,236.45-28,840.85-9,099.21

Finding the Fourth Proportional to 19,236.45, 28,840.85 and 9,099.21

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Solution

The fourth proportional to 19,236.45, 28,840.85 and 9,099.21 is: 13,642.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,236.45 : 28,840.85 = 9,099.21 : x
  2. Step 2: Convert to fraction form
    19,236.45/28,840.85 = 9,099.21/x
  3. Step 3: Cross multiply
    19,236.45x = 28,840.85 × 9,099.21
  4. Step 4: Simplify right side
    19,236.45x = 262,428,973.48
  5. Step 5: Solve for x
    x = 262,428,973.48/19,236.45
  6. Step 6: Final answer
    x = 13,642.27

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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.