Home / 28,546.24-39,407.28-21,475.36

Finding the Fourth Proportional to 28,546.24, 39,407.28 and 21,475.36

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Solution

The fourth proportional to 28,546.24, 39,407.28 and 21,475.36 is: 29,646.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,546.24 : 39,407.28 = 21,475.36 : x
  2. Step 2: Convert to fraction form
    28,546.24/39,407.28 = 21,475.36/x
  3. Step 3: Cross multiply
    28,546.24x = 39,407.28 × 21,475.36
  4. Step 4: Simplify right side
    28,546.24x = 846,285,524.62
  5. Step 5: Solve for x
    x = 846,285,524.62/28,546.24
  6. Step 6: Final answer
    x = 29,646.13

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.