Home / 15,380.75-23,070.80-4,287.15

Finding the Fourth Proportional to 15,380.75, 23,070.80 and 4,287.15

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Solution

The fourth proportional to 15,380.75, 23,070.80 and 4,287.15 is: 6,430.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,380.75 : 23,070.80 = 4,287.15 : x
  2. Step 2: Convert to fraction form
    15,380.75/23,070.80 = 4,287.15/x
  3. Step 3: Cross multiply
    15,380.75x = 23,070.80 × 4,287.15
  4. Step 4: Simplify right side
    15,380.75x = 98,907,990.94
  5. Step 5: Solve for x
    x = 98,907,990.94/15,380.75
  6. Step 6: Final answer
    x = 6,430.63

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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.