Home / 28,372.16-42,556.64-12,572.64

Finding the Fourth Proportional to 28,372.16, 42,556.64 and 12,572.64

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Solution

The fourth proportional to 28,372.16, 42,556.64 and 12,572.64 is: 18,858.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,372.16 : 42,556.64 = 12,572.64 : x
  2. Step 2: Convert to fraction form
    28,372.16/42,556.64 = 12,572.64/x
  3. Step 3: Cross multiply
    28,372.16x = 42,556.64 × 12,572.64
  4. Step 4: Simplify right side
    28,372.16x = 535,049,314.33
  5. Step 5: Solve for x
    x = 535,049,314.33/28,372.16
  6. Step 6: Final answer
    x = 18,858.25

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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.