Home / 23,137.30-31,929.70-13,577.35

Finding the Fourth Proportional to 23,137.30, 31,929.70 and 13,577.35

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Solution

The fourth proportional to 23,137.30, 31,929.70 and 13,577.35 is: 18,736.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,137.30 : 31,929.70 = 13,577.35 : x
  2. Step 2: Convert to fraction form
    23,137.30/31,929.70 = 13,577.35/x
  3. Step 3: Cross multiply
    23,137.30x = 31,929.70 × 13,577.35
  4. Step 4: Simplify right side
    23,137.30x = 433,520,712.30
  5. Step 5: Solve for x
    x = 433,520,712.30/23,137.30
  6. Step 6: Final answer
    x = 18,736.88

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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.