Home / 20,994.61-31,474.05-9,301.45

Finding the Fourth Proportional to 20,994.61, 31,474.05 and 9,301.45

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Solution

The fourth proportional to 20,994.61, 31,474.05 and 9,301.45 is: 13,944.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,994.61 : 31,474.05 = 9,301.45 : x
  2. Step 2: Convert to fraction form
    20,994.61/31,474.05 = 9,301.45/x
  3. Step 3: Cross multiply
    20,994.61x = 31,474.05 × 9,301.45
  4. Step 4: Simplify right side
    20,994.61x = 292,754,302.37
  5. Step 5: Solve for x
    x = 292,754,302.37/20,994.61
  6. Step 6: Final answer
    x = 13,944.26

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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.