Home / 20,090.81-30,133.65-5,300.84

Finding the Fourth Proportional to 20,090.81, 30,133.65 and 5,300.84

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Solution

The fourth proportional to 20,090.81, 30,133.65 and 5,300.84 is: 7,950.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,090.81 : 30,133.65 = 5,300.84 : x
  2. Step 2: Convert to fraction form
    20,090.81/30,133.65 = 5,300.84/x
  3. Step 3: Cross multiply
    20,090.81x = 30,133.65 × 5,300.84
  4. Step 4: Simplify right side
    20,090.81x = 159,733,657.27
  5. Step 5: Solve for x
    x = 159,733,657.27/20,090.81
  6. Step 6: Final answer
    x = 7,950.58

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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.