Home / 28,454.06-42,670.15-19,662.32

Finding the Fourth Proportional to 28,454.06, 42,670.15 and 19,662.32

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Solution

The fourth proportional to 28,454.06, 42,670.15 and 19,662.32 is: 29,485.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,454.06 : 42,670.15 = 19,662.32 : x
  2. Step 2: Convert to fraction form
    28,454.06/42,670.15 = 19,662.32/x
  3. Step 3: Cross multiply
    28,454.06x = 42,670.15 × 19,662.32
  4. Step 4: Simplify right side
    28,454.06x = 838,994,143.75
  5. Step 5: Solve for x
    x = 838,994,143.75/28,454.06
  6. Step 6: Final answer
    x = 29,485.92

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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.