Home / 42,126.40-63,188.99-12,544.39

Finding the Fourth Proportional to 42,126.40, 63,188.99 and 12,544.39

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Solution

The fourth proportional to 42,126.40, 63,188.99 and 12,544.39 is: 18,816.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,126.40 : 63,188.99 = 12,544.39 : x
  2. Step 2: Convert to fraction form
    42,126.40/63,188.99 = 12,544.39/x
  3. Step 3: Cross multiply
    42,126.40x = 63,188.99 × 12,544.39
  4. Step 4: Simplify right side
    42,126.40x = 792,667,334.27
  5. Step 5: Solve for x
    x = 792,667,334.27/42,126.40
  6. Step 6: Final answer
    x = 18,816.40

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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.