Home / 20,573.04-30,859.56-4,990.64

Finding the Fourth Proportional to 20,573.04, 30,859.56 and 4,990.64

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Solution

The fourth proportional to 20,573.04, 30,859.56 and 4,990.64 is: 7,485.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,573.04 : 30,859.56 = 4,990.64 : x
  2. Step 2: Convert to fraction form
    20,573.04/30,859.56 = 4,990.64/x
  3. Step 3: Cross multiply
    20,573.04x = 30,859.56 × 4,990.64
  4. Step 4: Simplify right side
    20,573.04x = 154,008,954.52
  5. Step 5: Solve for x
    x = 154,008,954.52/20,573.04
  6. Step 6: Final answer
    x = 7,485.96

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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.