Home / 28,533.54-39,375.21-15,787.26

Finding the Fourth Proportional to 28,533.54, 39,375.21 and 15,787.26

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Solution

The fourth proportional to 28,533.54, 39,375.21 and 15,787.26 is: 21,785.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,533.54 : 39,375.21 = 15,787.26 : x
  2. Step 2: Convert to fraction form
    28,533.54/39,375.21 = 15,787.26/x
  3. Step 3: Cross multiply
    28,533.54x = 39,375.21 × 15,787.26
  4. Step 4: Simplify right side
    28,533.54x = 621,626,677.82
  5. Step 5: Solve for x
    x = 621,626,677.82/28,533.54
  6. Step 6: Final answer
    x = 21,785.82

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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.