Home / 20,252.10-30,393.72-13,230.21

Finding the Fourth Proportional to 20,252.10, 30,393.72 and 13,230.21

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Solution

The fourth proportional to 20,252.10, 30,393.72 and 13,230.21 is: 19,855.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,252.10 : 30,393.72 = 13,230.21 : x
  2. Step 2: Convert to fraction form
    20,252.10/30,393.72 = 13,230.21/x
  3. Step 3: Cross multiply
    20,252.10x = 30,393.72 × 13,230.21
  4. Step 4: Simplify right side
    20,252.10x = 402,115,298.28
  5. Step 5: Solve for x
    x = 402,115,298.28/20,252.10
  6. Step 6: Final answer
    x = 19,855.49

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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.