Home / 20,848.45-31,263.23-8,996.63

Finding the Fourth Proportional to 20,848.45, 31,263.23 and 8,996.63

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Solution

The fourth proportional to 20,848.45, 31,263.23 and 8,996.63 is: 13,490.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,848.45 : 31,263.23 = 8,996.63 : x
  2. Step 2: Convert to fraction form
    20,848.45/31,263.23 = 8,996.63/x
  3. Step 3: Cross multiply
    20,848.45x = 31,263.23 × 8,996.63
  4. Step 4: Simplify right side
    20,848.45x = 281,263,712.91
  5. Step 5: Solve for x
    x = 281,263,712.91/20,848.45
  6. Step 6: Final answer
    x = 13,490.87

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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.