Home / 26,303.20-39,420.24-12,456.16

Finding the Fourth Proportional to 26,303.20, 39,420.24 and 12,456.16

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Solution

The fourth proportional to 26,303.20, 39,420.24 and 12,456.16 is: 18,667.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,303.20 : 39,420.24 = 12,456.16 : x
  2. Step 2: Convert to fraction form
    26,303.20/39,420.24 = 12,456.16/x
  3. Step 3: Cross multiply
    26,303.20x = 39,420.24 × 12,456.16
  4. Step 4: Simplify right side
    26,303.20x = 491,024,816.68
  5. Step 5: Solve for x
    x = 491,024,816.68/26,303.20
  6. Step 6: Final answer
    x = 18,667.87

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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.