Home / 34,720.04-47,923.80-20,383.58

Finding the Fourth Proportional to 34,720.04, 47,923.80 and 20,383.58

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Solution

The fourth proportional to 34,720.04, 47,923.80 and 20,383.58 is: 28,135.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,720.04 : 47,923.80 = 20,383.58 : x
  2. Step 2: Convert to fraction form
    34,720.04/47,923.80 = 20,383.58/x
  3. Step 3: Cross multiply
    34,720.04x = 47,923.80 × 20,383.58
  4. Step 4: Simplify right side
    34,720.04x = 976,858,611.20
  5. Step 5: Solve for x
    x = 976,858,611.20/34,720.04
  6. Step 6: Final answer
    x = 28,135.30

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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.