Home / 30,720.65-46,080.67-14,075.96

Finding the Fourth Proportional to 30,720.65, 46,080.67 and 14,075.96

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Solution

The fourth proportional to 30,720.65, 46,080.67 and 14,075.96 is: 21,113.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,720.65 : 46,080.67 = 14,075.96 : x
  2. Step 2: Convert to fraction form
    30,720.65/46,080.67 = 14,075.96/x
  3. Step 3: Cross multiply
    30,720.65x = 46,080.67 × 14,075.96
  4. Step 4: Simplify right side
    30,720.65x = 648,629,517.30
  5. Step 5: Solve for x
    x = 648,629,517.30/30,720.65
  6. Step 6: Final answer
    x = 21,113.80

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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.