Home / 30,085.02-45,131.72-12,550.82

Finding the Fourth Proportional to 30,085.02, 45,131.72 and 12,550.82

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Solution

The fourth proportional to 30,085.02, 45,131.72 and 12,550.82 is: 18,827.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,085.02 : 45,131.72 = 12,550.82 : x
  2. Step 2: Convert to fraction form
    30,085.02/45,131.72 = 12,550.82/x
  3. Step 3: Cross multiply
    30,085.02x = 45,131.72 × 12,550.82
  4. Step 4: Simplify right side
    30,085.02x = 566,439,805.60
  5. Step 5: Solve for x
    x = 566,439,805.60/30,085.02
  6. Step 6: Final answer
    x = 18,827.97

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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.