Home / 28,388.28-42,576.93-10,853.94

Finding the Fourth Proportional to 28,388.28, 42,576.93 and 10,853.94

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Solution

The fourth proportional to 28,388.28, 42,576.93 and 10,853.94 is: 16,278.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,388.28 : 42,576.93 = 10,853.94 : x
  2. Step 2: Convert to fraction form
    28,388.28/42,576.93 = 10,853.94/x
  3. Step 3: Cross multiply
    28,388.28x = 42,576.93 × 10,853.94
  4. Step 4: Simplify right side
    28,388.28x = 462,127,443.60
  5. Step 5: Solve for x
    x = 462,127,443.60/28,388.28
  6. Step 6: Final answer
    x = 16,278.81

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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.