Home / 27,999.06-42,000.87-9,278.34

Finding the Fourth Proportional to 27,999.06, 42,000.87 and 9,278.34

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Solution

The fourth proportional to 27,999.06, 42,000.87 and 9,278.34 is: 13,918.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,999.06 : 42,000.87 = 9,278.34 : x
  2. Step 2: Convert to fraction form
    27,999.06/42,000.87 = 9,278.34/x
  3. Step 3: Cross multiply
    27,999.06x = 42,000.87 × 9,278.34
  4. Step 4: Simplify right side
    27,999.06x = 389,698,352.16
  5. Step 5: Solve for x
    x = 389,698,352.16/27,999.06
  6. Step 6: Final answer
    x = 13,918.27

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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.