Home / 20,117.63-30,173.01-5,328.05

Finding the Fourth Proportional to 20,117.63, 30,173.01 and 5,328.05

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Solution

The fourth proportional to 20,117.63, 30,173.01 and 5,328.05 is: 7,991.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,117.63 : 30,173.01 = 5,328.05 : x
  2. Step 2: Convert to fraction form
    20,117.63/30,173.01 = 5,328.05/x
  3. Step 3: Cross multiply
    20,117.63x = 30,173.01 × 5,328.05
  4. Step 4: Simplify right side
    20,117.63x = 160,763,305.93
  5. Step 5: Solve for x
    x = 160,763,305.93/20,117.63
  6. Step 6: Final answer
    x = 7,991.17

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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.