Home / 20,303.88-30,457.58-7,156.37

Finding the Fourth Proportional to 20,303.88, 30,457.58 and 7,156.37

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Solution

The fourth proportional to 20,303.88, 30,457.58 and 7,156.37 is: 10,735.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,303.88 : 30,457.58 = 7,156.37 : x
  2. Step 2: Convert to fraction form
    20,303.88/30,457.58 = 7,156.37/x
  3. Step 3: Cross multiply
    20,303.88x = 30,457.58 × 7,156.37
  4. Step 4: Simplify right side
    20,303.88x = 217,965,523.71
  5. Step 5: Solve for x
    x = 217,965,523.71/20,303.88
  6. Step 6: Final answer
    x = 10,735.17

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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.