Home / 28,370.70-42,537.78-13,579.26

Finding the Fourth Proportional to 28,370.70, 42,537.78 and 13,579.26

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Solution

The fourth proportional to 28,370.70, 42,537.78 and 13,579.26 is: 20,360.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,370.70 : 42,537.78 = 13,579.26 : x
  2. Step 2: Convert to fraction form
    28,370.70/42,537.78 = 13,579.26/x
  3. Step 3: Cross multiply
    28,370.70x = 42,537.78 × 13,579.26
  4. Step 4: Simplify right side
    28,370.70x = 577,631,574.44
  5. Step 5: Solve for x
    x = 577,631,574.44/28,370.70
  6. Step 6: Final answer
    x = 20,360.15

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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.