Home / 20,071.60-30,108.21-5,282.01

Finding the Fourth Proportional to 20,071.60, 30,108.21 and 5,282.01

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Solution

The fourth proportional to 20,071.60, 30,108.21 and 5,282.01 is: 7,923.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,071.60 : 30,108.21 = 5,282.01 : x
  2. Step 2: Convert to fraction form
    20,071.60/30,108.21 = 5,282.01/x
  3. Step 3: Cross multiply
    20,071.60x = 30,108.21 × 5,282.01
  4. Step 4: Simplify right side
    20,071.60x = 159,031,846.49
  5. Step 5: Solve for x
    x = 159,031,846.49/20,071.60
  6. Step 6: Final answer
    x = 7,923.23

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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.