Home / 28,903.25-39,889.73-16,328.81

Finding the Fourth Proportional to 28,903.25, 39,889.73 and 16,328.81

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Solution

The fourth proportional to 28,903.25, 39,889.73 and 16,328.81 is: 22,535.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,903.25 : 39,889.73 = 16,328.81 : x
  2. Step 2: Convert to fraction form
    28,903.25/39,889.73 = 16,328.81/x
  3. Step 3: Cross multiply
    28,903.25x = 39,889.73 × 16,328.81
  4. Step 4: Simplify right side
    28,903.25x = 651,351,822.12
  5. Step 5: Solve for x
    x = 651,351,822.12/28,903.25
  6. Step 6: Final answer
    x = 22,535.59

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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.