Home / 28,973.60-43,449.60-11,439.80

Finding the Fourth Proportional to 28,973.60, 43,449.60 and 11,439.80

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Solution

The fourth proportional to 28,973.60, 43,449.60 and 11,439.80 is: 17,155.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,973.60 : 43,449.60 = 11,439.80 : x
  2. Step 2: Convert to fraction form
    28,973.60/43,449.60 = 11,439.80/x
  3. Step 3: Cross multiply
    28,973.60x = 43,449.60 × 11,439.80
  4. Step 4: Simplify right side
    28,973.60x = 497,054,734.08
  5. Step 5: Solve for x
    x = 497,054,734.08/28,973.60
  6. Step 6: Final answer
    x = 17,155.44

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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.