Home / 30,687.20-46,030.80-9,910.70

Finding the Fourth Proportional to 30,687.20, 46,030.80 and 9,910.70

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Solution

The fourth proportional to 30,687.20, 46,030.80 and 9,910.70 is: 14,866.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,687.20 : 46,030.80 = 9,910.70 : x
  2. Step 2: Convert to fraction form
    30,687.20/46,030.80 = 9,910.70/x
  3. Step 3: Cross multiply
    30,687.20x = 46,030.80 × 9,910.70
  4. Step 4: Simplify right side
    30,687.20x = 456,197,449.56
  5. Step 5: Solve for x
    x = 456,197,449.56/30,687.20
  6. Step 6: Final answer
    x = 14,866.05

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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.