Home / 20,155.68-30,235.76-5,365.16

Finding the Fourth Proportional to 20,155.68, 30,235.76 and 5,365.16

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Solution

The fourth proportional to 20,155.68, 30,235.76 and 5,365.16 is: 8,048.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,155.68 : 30,235.76 = 5,365.16 : x
  2. Step 2: Convert to fraction form
    20,155.68/30,235.76 = 5,365.16/x
  3. Step 3: Cross multiply
    20,155.68x = 30,235.76 × 5,365.16
  4. Step 4: Simplify right side
    20,155.68x = 162,219,690.12
  5. Step 5: Solve for x
    x = 162,219,690.12/20,155.68
  6. Step 6: Final answer
    x = 8,048.34

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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.