Home / 15,453.01-21,414.93-15,157.63

Finding the Fourth Proportional to 15,453.01, 21,414.93 and 15,157.63

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Solution

The fourth proportional to 15,453.01, 21,414.93 and 15,157.63 is: 21,005.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,453.01 : 21,414.93 = 15,157.63 : x
  2. Step 2: Convert to fraction form
    15,453.01/21,414.93 = 15,157.63/x
  3. Step 3: Cross multiply
    15,453.01x = 21,414.93 × 15,157.63
  4. Step 4: Simplify right side
    15,453.01x = 324,599,585.42
  5. Step 5: Solve for x
    x = 324,599,585.42/15,453.01
  6. Step 6: Final answer
    x = 21,005.59

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.