Home / 20,888.98-31,333.62-6,108.20

Finding the Fourth Proportional to 20,888.98, 31,333.62 and 6,108.20

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Solution

The fourth proportional to 20,888.98, 31,333.62 and 6,108.20 is: 9,162.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,888.98 : 31,333.62 = 6,108.20 : x
  2. Step 2: Convert to fraction form
    20,888.98/31,333.62 = 6,108.20/x
  3. Step 3: Cross multiply
    20,888.98x = 31,333.62 × 6,108.20
  4. Step 4: Simplify right side
    20,888.98x = 191,392,017.68
  5. Step 5: Solve for x
    x = 191,392,017.68/20,888.98
  6. Step 6: Final answer
    x = 9,162.34

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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.