Home / 28,310.46-42,479.53-20,043.60

Finding the Fourth Proportional to 28,310.46, 42,479.53 and 20,043.60

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Solution

The fourth proportional to 28,310.46, 42,479.53 and 20,043.60 is: 30,075.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,310.46 : 42,479.53 = 20,043.60 : x
  2. Step 2: Convert to fraction form
    28,310.46/42,479.53 = 20,043.60/x
  3. Step 3: Cross multiply
    28,310.46x = 42,479.53 × 20,043.60
  4. Step 4: Simplify right side
    28,310.46x = 851,442,707.51
  5. Step 5: Solve for x
    x = 851,442,707.51/28,310.46
  6. Step 6: Final answer
    x = 30,075.20

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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.