Home / 28,237.30-42,328.40-13,442.24

Finding the Fourth Proportional to 28,237.30, 42,328.40 and 13,442.24

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Solution

The fourth proportional to 28,237.30, 42,328.40 and 13,442.24 is: 20,150.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,237.30 : 42,328.40 = 13,442.24 : x
  2. Step 2: Convert to fraction form
    28,237.30/42,328.40 = 13,442.24/x
  3. Step 3: Cross multiply
    28,237.30x = 42,328.40 × 13,442.24
  4. Step 4: Simplify right side
    28,237.30x = 568,988,511.62
  5. Step 5: Solve for x
    x = 568,988,511.62/28,237.30
  6. Step 6: Final answer
    x = 20,150.24

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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.