Home / 23,056.80-31,817.16-13,621.92

Finding the Fourth Proportional to 23,056.80, 31,817.16 and 13,621.92

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Solution

The fourth proportional to 23,056.80, 31,817.16 and 13,621.92 is: 18,797.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,056.80 : 31,817.16 = 13,621.92 : x
  2. Step 2: Convert to fraction form
    23,056.80/31,817.16 = 13,621.92/x
  3. Step 3: Cross multiply
    23,056.80x = 31,817.16 × 13,621.92
  4. Step 4: Simplify right side
    23,056.80x = 433,410,808.15
  5. Step 5: Solve for x
    x = 433,410,808.15/23,056.80
  6. Step 6: Final answer
    x = 18,797.53

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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.