Home / 15,822.51-21,832.92-13,442.10

Finding the Fourth Proportional to 15,822.51, 21,832.92 and 13,442.10

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Solution

The fourth proportional to 15,822.51, 21,832.92 and 13,442.10 is: 18,548.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,822.51 : 21,832.92 = 13,442.10 : x
  2. Step 2: Convert to fraction form
    15,822.51/21,832.92 = 13,442.10/x
  3. Step 3: Cross multiply
    15,822.51x = 21,832.92 × 13,442.10
  4. Step 4: Simplify right side
    15,822.51x = 293,480,293.93
  5. Step 5: Solve for x
    x = 293,480,293.93/15,822.51
  6. Step 6: Final answer
    x = 18,548.28

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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.