Home / 28,330.16-42,496.31-8,608.21

Finding the Fourth Proportional to 28,330.16, 42,496.31 and 8,608.21

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Solution

The fourth proportional to 28,330.16, 42,496.31 and 8,608.21 is: 12,912.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,330.16 : 42,496.31 = 8,608.21 : x
  2. Step 2: Convert to fraction form
    28,330.16/42,496.31 = 8,608.21/x
  3. Step 3: Cross multiply
    28,330.16x = 42,496.31 × 8,608.21
  4. Step 4: Simplify right side
    28,330.16x = 365,817,075.98
  5. Step 5: Solve for x
    x = 365,817,075.98/28,330.16
  6. Step 6: Final answer
    x = 12,912.64

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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.