Home / 20,723.99-31,096.98-9,038.12

Finding the Fourth Proportional to 20,723.99, 31,096.98 and 9,038.12

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Solution

The fourth proportional to 20,723.99, 31,096.98 and 9,038.12 is: 13,561.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,723.99 : 31,096.98 = 9,038.12 : x
  2. Step 2: Convert to fraction form
    20,723.99/31,096.98 = 9,038.12/x
  3. Step 3: Cross multiply
    20,723.99x = 31,096.98 × 9,038.12
  4. Step 4: Simplify right side
    20,723.99x = 281,058,081.39
  5. Step 5: Solve for x
    x = 281,058,081.39/20,723.99
  6. Step 6: Final answer
    x = 13,561.97

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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.