Home / 30,141.85-45,203.54-20,841.63

Finding the Fourth Proportional to 30,141.85, 45,203.54 and 20,841.63

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Solution

The fourth proportional to 30,141.85, 45,203.54 and 20,841.63 is: 31,256.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,141.85 : 45,203.54 = 20,841.63 : x
  2. Step 2: Convert to fraction form
    30,141.85/45,203.54 = 20,841.63/x
  3. Step 3: Cross multiply
    30,141.85x = 45,203.54 × 20,841.63
  4. Step 4: Simplify right side
    30,141.85x = 942,115,616.72
  5. Step 5: Solve for x
    x = 942,115,616.72/30,141.85
  6. Step 6: Final answer
    x = 31,256.06

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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.