Home / 28,590.74-42,863.20-13,590.33

Finding the Fourth Proportional to 28,590.74, 42,863.20 and 13,590.33

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Solution

The fourth proportional to 28,590.74, 42,863.20 and 13,590.33 is: 20,374.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,590.74 : 42,863.20 = 13,590.33 : x
  2. Step 2: Convert to fraction form
    28,590.74/42,863.20 = 13,590.33/x
  3. Step 3: Cross multiply
    28,590.74x = 42,863.20 × 13,590.33
  4. Step 4: Simplify right side
    28,590.74x = 582,525,032.86
  5. Step 5: Solve for x
    x = 582,525,032.86/28,590.74
  6. Step 6: Final answer
    x = 20,374.60

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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.