Home / 19,232.20-28,810.90-12,638.52

Finding the Fourth Proportional to 19,232.20, 28,810.90 and 12,638.52

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Solution

The fourth proportional to 19,232.20, 28,810.90 and 12,638.52 is: 18,933.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,232.20 : 28,810.90 = 12,638.52 : x
  2. Step 2: Convert to fraction form
    19,232.20/28,810.90 = 12,638.52/x
  3. Step 3: Cross multiply
    19,232.20x = 28,810.90 × 12,638.52
  4. Step 4: Simplify right side
    19,232.20x = 364,127,135.87
  5. Step 5: Solve for x
    x = 364,127,135.87/19,232.20
  6. Step 6: Final answer
    x = 18,933.20

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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.