Home / 21,018.32-31,527.39-6,228.39

Finding the Fourth Proportional to 21,018.32, 31,527.39 and 6,228.39

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Solution

The fourth proportional to 21,018.32, 31,527.39 and 6,228.39 is: 9,342.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,018.32 : 31,527.39 = 6,228.39 : x
  2. Step 2: Convert to fraction form
    21,018.32/31,527.39 = 6,228.39/x
  3. Step 3: Cross multiply
    21,018.32x = 31,527.39 × 6,228.39
  4. Step 4: Simplify right side
    21,018.32x = 196,365,022.19
  5. Step 5: Solve for x
    x = 196,365,022.19/21,018.32
  6. Step 6: Final answer
    x = 9,342.57

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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.