Home / 26,864.75-40,303.96-15,780.81

Finding the Fourth Proportional to 26,864.75, 40,303.96 and 15,780.81

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Solution

The fourth proportional to 26,864.75, 40,303.96 and 15,780.81 is: 23,675.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,864.75 : 40,303.96 = 15,780.81 : x
  2. Step 2: Convert to fraction form
    26,864.75/40,303.96 = 15,780.81/x
  3. Step 3: Cross multiply
    26,864.75x = 40,303.96 × 15,780.81
  4. Step 4: Simplify right side
    26,864.75x = 636,029,135.01
  5. Step 5: Solve for x
    x = 636,029,135.01/26,864.75
  6. Step 6: Final answer
    x = 23,675.23

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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.