Home / 20,455.99-30,700.37-10,598.09

Finding the Fourth Proportional to 20,455.99, 30,700.37 and 10,598.09

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Solution

The fourth proportional to 20,455.99, 30,700.37 and 10,598.09 is: 15,905.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,455.99 : 30,700.37 = 10,598.09 : x
  2. Step 2: Convert to fraction form
    20,455.99/30,700.37 = 10,598.09/x
  3. Step 3: Cross multiply
    20,455.99x = 30,700.37 × 10,598.09
  4. Step 4: Simplify right side
    20,455.99x = 325,365,157.29
  5. Step 5: Solve for x
    x = 325,365,157.29/20,455.99
  6. Step 6: Final answer
    x = 15,905.62

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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.