Home / 42,024.96-63,015.33-12,438.48

Finding the Fourth Proportional to 42,024.96, 63,015.33 and 12,438.48

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Solution

The fourth proportional to 42,024.96, 63,015.33 and 12,438.48 is: 18,651.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,024.96 : 63,015.33 = 12,438.48 : x
  2. Step 2: Convert to fraction form
    42,024.96/63,015.33 = 12,438.48/x
  3. Step 3: Cross multiply
    42,024.96x = 63,015.33 × 12,438.48
  4. Step 4: Simplify right side
    42,024.96x = 783,814,921.90
  5. Step 5: Solve for x
    x = 783,814,921.90/42,024.96
  6. Step 6: Final answer
    x = 18,651.18

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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.