Home / 21,848.08-30,152.92-12,418.08

Finding the Fourth Proportional to 21,848.08, 30,152.92 and 12,418.08

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Solution

The fourth proportional to 21,848.08, 30,152.92 and 12,418.08 is: 17,138.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,848.08 : 30,152.92 = 12,418.08 : x
  2. Step 2: Convert to fraction form
    21,848.08/30,152.92 = 12,418.08/x
  3. Step 3: Cross multiply
    21,848.08x = 30,152.92 × 12,418.08
  4. Step 4: Simplify right side
    21,848.08x = 374,441,372.79
  5. Step 5: Solve for x
    x = 374,441,372.79/21,848.08
  6. Step 6: Final answer
    x = 17,138.41

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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.