Home / 28,987.61-43,481.07-11,457.32

Finding the Fourth Proportional to 28,987.61, 43,481.07 and 11,457.32

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Solution

The fourth proportional to 28,987.61, 43,481.07 and 11,457.32 is: 17,185.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,987.61 : 43,481.07 = 11,457.32 : x
  2. Step 2: Convert to fraction form
    28,987.61/43,481.07 = 11,457.32/x
  3. Step 3: Cross multiply
    28,987.61x = 43,481.07 × 11,457.32
  4. Step 4: Simplify right side
    28,987.61x = 498,176,315.53
  5. Step 5: Solve for x
    x = 498,176,315.53/28,987.61
  6. Step 6: Final answer
    x = 17,185.84

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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.