Home / 21,618.37-29,832.75-12,058.54

Finding the Fourth Proportional to 21,618.37, 29,832.75 and 12,058.54

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Solution

The fourth proportional to 21,618.37, 29,832.75 and 12,058.54 is: 16,640.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,618.37 : 29,832.75 = 12,058.54 : x
  2. Step 2: Convert to fraction form
    21,618.37/29,832.75 = 12,058.54/x
  3. Step 3: Cross multiply
    21,618.37x = 29,832.75 × 12,058.54
  4. Step 4: Simplify right side
    21,618.37x = 359,739,409.19
  5. Step 5: Solve for x
    x = 359,739,409.19/21,618.37
  6. Step 6: Final answer
    x = 16,640.45

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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.