Home / 42,520.14-63,780.08-20,328.33

Finding the Fourth Proportional to 42,520.14, 63,780.08 and 20,328.33

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Solution

The fourth proportional to 42,520.14, 63,780.08 and 20,328.33 is: 30,492.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,520.14 : 63,780.08 = 20,328.33 : x
  2. Step 2: Convert to fraction form
    42,520.14/63,780.08 = 20,328.33/x
  3. Step 3: Cross multiply
    42,520.14x = 63,780.08 × 20,328.33
  4. Step 4: Simplify right side
    42,520.14x = 1,296,542,093.12
  5. Step 5: Solve for x
    x = 1,296,542,093.12/42,520.14
  6. Step 6: Final answer
    x = 30,492.43

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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.