Home / 20,404.94-30,541.79-10,530.77

Finding the Fourth Proportional to 20,404.94, 30,541.79 and 10,530.77

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Solution

The fourth proportional to 20,404.94, 30,541.79 and 10,530.77 is: 15,762.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,404.94 : 30,541.79 = 10,530.77 : x
  2. Step 2: Convert to fraction form
    20,404.94/30,541.79 = 10,530.77/x
  3. Step 3: Cross multiply
    20,404.94x = 30,541.79 × 10,530.77
  4. Step 4: Simplify right side
    20,404.94x = 321,628,360.52
  5. Step 5: Solve for x
    x = 321,628,360.52/20,404.94
  6. Step 6: Final answer
    x = 15,762.28

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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.