Home / 36,040.55-54,054.95-12,661.52

Finding the Fourth Proportional to 36,040.55, 54,054.95 and 12,661.52

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Solution

The fourth proportional to 36,040.55, 54,054.95 and 12,661.52 is: 18,990.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,040.55 : 54,054.95 = 12,661.52 : x
  2. Step 2: Convert to fraction form
    36,040.55/54,054.95 = 12,661.52/x
  3. Step 3: Cross multiply
    36,040.55x = 54,054.95 × 12,661.52
  4. Step 4: Simplify right side
    36,040.55x = 684,417,496.94
  5. Step 5: Solve for x
    x = 684,417,496.94/36,040.55
  6. Step 6: Final answer
    x = 18,990.21

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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.