Home / 28,381.32-42,514.61-14,321.75

Finding the Fourth Proportional to 28,381.32, 42,514.61 and 14,321.75

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Solution

The fourth proportional to 28,381.32, 42,514.61 and 14,321.75 is: 21,453.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,381.32 : 42,514.61 = 14,321.75 : x
  2. Step 2: Convert to fraction form
    28,381.32/42,514.61 = 14,321.75/x
  3. Step 3: Cross multiply
    28,381.32x = 42,514.61 × 14,321.75
  4. Step 4: Simplify right side
    28,381.32x = 608,883,331.59
  5. Step 5: Solve for x
    x = 608,883,331.59/28,381.32
  6. Step 6: Final answer
    x = 21,453.67

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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.