Home / 28,078.28-42,123.69-10,548.26

Finding the Fourth Proportional to 28,078.28, 42,123.69 and 10,548.26

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Solution

The fourth proportional to 28,078.28, 42,123.69 and 10,548.26 is: 15,824.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,078.28 : 42,123.69 = 10,548.26 : x
  2. Step 2: Convert to fraction form
    28,078.28/42,123.69 = 10,548.26/x
  3. Step 3: Cross multiply
    28,078.28x = 42,123.69 × 10,548.26
  4. Step 4: Simplify right side
    28,078.28x = 444,331,634.28
  5. Step 5: Solve for x
    x = 444,331,634.28/28,078.28
  6. Step 6: Final answer
    x = 15,824.75

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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.