Home / 26,520.51-39,780.77-12,471.81

Finding the Fourth Proportional to 26,520.51, 39,780.77 and 12,471.81

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Solution

The fourth proportional to 26,520.51, 39,780.77 and 12,471.81 is: 18,707.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,520.51 : 39,780.77 = 12,471.81 : x
  2. Step 2: Convert to fraction form
    26,520.51/39,780.77 = 12,471.81/x
  3. Step 3: Cross multiply
    26,520.51x = 39,780.77 × 12,471.81
  4. Step 4: Simplify right side
    26,520.51x = 496,138,142.73
  5. Step 5: Solve for x
    x = 496,138,142.73/26,520.51
  6. Step 6: Final answer
    x = 18,707.72

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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.