Home / 28,583.58-42,890.86-11,945.08

Finding the Fourth Proportional to 28,583.58, 42,890.86 and 11,945.08

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Solution

The fourth proportional to 28,583.58, 42,890.86 and 11,945.08 is: 17,924.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,583.58 : 42,890.86 = 11,945.08 : x
  2. Step 2: Convert to fraction form
    28,583.58/42,890.86 = 11,945.08/x
  3. Step 3: Cross multiply
    28,583.58x = 42,890.86 × 11,945.08
  4. Step 4: Simplify right side
    28,583.58x = 512,334,539.51
  5. Step 5: Solve for x
    x = 512,334,539.51/28,583.58
  6. Step 6: Final answer
    x = 17,924.09

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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.