Home / 28,490.44-42,745.17-17,948.28

Finding the Fourth Proportional to 28,490.44, 42,745.17 and 17,948.28

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Solution

The fourth proportional to 28,490.44, 42,745.17 and 17,948.28 is: 26,928.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,490.44 : 42,745.17 = 17,948.28 : x
  2. Step 2: Convert to fraction form
    28,490.44/42,745.17 = 17,948.28/x
  3. Step 3: Cross multiply
    28,490.44x = 42,745.17 × 17,948.28
  4. Step 4: Simplify right side
    28,490.44x = 767,202,279.81
  5. Step 5: Solve for x
    x = 767,202,279.81/28,490.44
  6. Step 6: Final answer
    x = 26,928.41

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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.