Home / 28,840.85-43,261.63-9,121.13

Finding the Fourth Proportional to 28,840.85, 43,261.63 and 9,121.13

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Solution

The fourth proportional to 28,840.85, 43,261.63 and 9,121.13 is: 13,681.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,840.85 : 43,261.63 = 9,121.13 : x
  2. Step 2: Convert to fraction form
    28,840.85/43,261.63 = 9,121.13/x
  3. Step 3: Cross multiply
    28,840.85x = 43,261.63 × 9,121.13
  4. Step 4: Simplify right side
    28,840.85x = 394,594,712.13
  5. Step 5: Solve for x
    x = 394,594,712.13/28,840.85
  6. Step 6: Final answer
    x = 13,681.80

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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.