Home / 28,476.81-42,727.77-11,840.63

Finding the Fourth Proportional to 28,476.81, 42,727.77 and 11,840.63

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Solution

The fourth proportional to 28,476.81, 42,727.77 and 11,840.63 is: 17,766.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,476.81 : 42,727.77 = 11,840.63 : x
  2. Step 2: Convert to fraction form
    28,476.81/42,727.77 = 11,840.63/x
  3. Step 3: Cross multiply
    28,476.81x = 42,727.77 × 11,840.63
  4. Step 4: Simplify right side
    28,476.81x = 505,923,501.66
  5. Step 5: Solve for x
    x = 505,923,501.66/28,476.81
  6. Step 6: Final answer
    x = 17,766.16

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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.