Home / 30,216.80-45,327.36-10,492.80

Finding the Fourth Proportional to 30,216.80, 45,327.36 and 10,492.80

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Solution

The fourth proportional to 30,216.80, 45,327.36 and 10,492.80 is: 15,739.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,216.80 : 45,327.36 = 10,492.80 : x
  2. Step 2: Convert to fraction form
    30,216.80/45,327.36 = 10,492.80/x
  3. Step 3: Cross multiply
    30,216.80x = 45,327.36 × 10,492.80
  4. Step 4: Simplify right side
    30,216.80x = 475,610,923.01
  5. Step 5: Solve for x
    x = 475,610,923.01/30,216.80
  6. Step 6: Final answer
    x = 15,739.95

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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.