Home / 28,905.36-39,889.44-16,330.14

Finding the Fourth Proportional to 28,905.36, 39,889.44 and 16,330.14

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Solution

The fourth proportional to 28,905.36, 39,889.44 and 16,330.14 is: 22,535.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,905.36 : 39,889.44 = 16,330.14 : x
  2. Step 2: Convert to fraction form
    28,905.36/39,889.44 = 16,330.14/x
  3. Step 3: Cross multiply
    28,905.36x = 39,889.44 × 16,330.14
  4. Step 4: Simplify right side
    28,905.36x = 651,400,139.72
  5. Step 5: Solve for x
    x = 651,400,139.72/28,905.36
  6. Step 6: Final answer
    x = 22,535.62

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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.