Home / 20,577.34-30,915.24-13,196.20

Finding the Fourth Proportional to 20,577.34, 30,915.24 and 13,196.20

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Solution

The fourth proportional to 20,577.34, 30,915.24 and 13,196.20 is: 19,825.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,577.34 : 30,915.24 = 13,196.20 : x
  2. Step 2: Convert to fraction form
    20,577.34/30,915.24 = 13,196.20/x
  3. Step 3: Cross multiply
    20,577.34x = 30,915.24 × 13,196.20
  4. Step 4: Simplify right side
    20,577.34x = 407,963,690.09
  5. Step 5: Solve for x
    x = 407,963,690.09/20,577.34
  6. Step 6: Final answer
    x = 19,825.87

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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.