Home / 30,451.66-45,686.70-21,584.12

Finding the Fourth Proportional to 30,451.66, 45,686.70 and 21,584.12

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Solution

The fourth proportional to 30,451.66, 45,686.70 and 21,584.12 is: 32,382.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,451.66 : 45,686.70 = 21,584.12 : x
  2. Step 2: Convert to fraction form
    30,451.66/45,686.70 = 21,584.12/x
  3. Step 3: Cross multiply
    30,451.66x = 45,686.70 × 21,584.12
  4. Step 4: Simplify right side
    30,451.66x = 986,106,986.77
  5. Step 5: Solve for x
    x = 986,106,986.77/30,451.66
  6. Step 6: Final answer
    x = 32,382.70

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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.