Home / 20,356.02-30,530.37-7,208.46

Finding the Fourth Proportional to 20,356.02, 30,530.37 and 7,208.46

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Solution

The fourth proportional to 20,356.02, 30,530.37 and 7,208.46 is: 10,811.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,356.02 : 30,530.37 = 7,208.46 : x
  2. Step 2: Convert to fraction form
    20,356.02/30,530.37 = 7,208.46/x
  3. Step 3: Cross multiply
    20,356.02x = 30,530.37 × 7,208.46
  4. Step 4: Simplify right side
    20,356.02x = 220,076,950.93
  5. Step 5: Solve for x
    x = 220,076,950.93/20,356.02
  6. Step 6: Final answer
    x = 10,811.39

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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.