Home / 28,157.16-42,232.86-7,380.66

Finding the Fourth Proportional to 28,157.16, 42,232.86 and 7,380.66

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Solution

The fourth proportional to 28,157.16, 42,232.86 and 7,380.66 is: 11,070.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,157.16 : 42,232.86 = 7,380.66 : x
  2. Step 2: Convert to fraction form
    28,157.16/42,232.86 = 7,380.66/x
  3. Step 3: Cross multiply
    28,157.16x = 42,232.86 × 7,380.66
  4. Step 4: Simplify right side
    28,157.16x = 311,706,380.49
  5. Step 5: Solve for x
    x = 311,706,380.49/28,157.16
  6. Step 6: Final answer
    x = 11,070.24

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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.