Home / 28,760.06-43,140.12-9,040.34

Finding the Fourth Proportional to 28,760.06, 43,140.12 and 9,040.34

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Solution

The fourth proportional to 28,760.06, 43,140.12 and 9,040.34 is: 13,560.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,760.06 : 43,140.12 = 9,040.34 : x
  2. Step 2: Convert to fraction form
    28,760.06/43,140.12 = 9,040.34/x
  3. Step 3: Cross multiply
    28,760.06x = 43,140.12 × 9,040.34
  4. Step 4: Simplify right side
    28,760.06x = 390,001,352.44
  5. Step 5: Solve for x
    x = 390,001,352.44/28,760.06
  6. Step 6: Final answer
    x = 13,560.52

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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.