Home / 30,905.70-46,309.05-30,085.62

Finding the Fourth Proportional to 30,905.70, 46,309.05 and 30,085.62

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Solution

The fourth proportional to 30,905.70, 46,309.05 and 30,085.62 is: 45,080.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,905.70 : 46,309.05 = 30,085.62 : x
  2. Step 2: Convert to fraction form
    30,905.70/46,309.05 = 30,085.62/x
  3. Step 3: Cross multiply
    30,905.70x = 46,309.05 × 30,085.62
  4. Step 4: Simplify right side
    30,905.70x = 1,393,236,480.86
  5. Step 5: Solve for x
    x = 1,393,236,480.86/30,905.70
  6. Step 6: Final answer
    x = 45,080.24

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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.