Home / 21,015.74-31,523.55-6,225.81

Finding the Fourth Proportional to 21,015.74, 31,523.55 and 6,225.81

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Solution

The fourth proportional to 21,015.74, 31,523.55 and 6,225.81 is: 9,338.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,015.74 : 31,523.55 = 6,225.81 : x
  2. Step 2: Convert to fraction form
    21,015.74/31,523.55 = 6,225.81/x
  3. Step 3: Cross multiply
    21,015.74x = 31,523.55 × 6,225.81
  4. Step 4: Simplify right side
    21,015.74x = 196,259,632.83
  5. Step 5: Solve for x
    x = 196,259,632.83/21,015.74
  6. Step 6: Final answer
    x = 9,338.70

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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.