Home / 20,477.99-30,715.29-5,687.25

Finding the Fourth Proportional to 20,477.99, 30,715.29 and 5,687.25

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Solution

The fourth proportional to 20,477.99, 30,715.29 and 5,687.25 is: 8,530.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,477.99 : 30,715.29 = 5,687.25 : x
  2. Step 2: Convert to fraction form
    20,477.99/30,715.29 = 5,687.25/x
  3. Step 3: Cross multiply
    20,477.99x = 30,715.29 × 5,687.25
  4. Step 4: Simplify right side
    20,477.99x = 174,685,533.05
  5. Step 5: Solve for x
    x = 174,685,533.05/20,477.99
  6. Step 6: Final answer
    x = 8,530.41

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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.