Home / 21,063.16-31,578.23-10,527.98

Finding the Fourth Proportional to 21,063.16, 31,578.23 and 10,527.98

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Solution

The fourth proportional to 21,063.16, 31,578.23 and 10,527.98 is: 15,783.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,063.16 : 31,578.23 = 10,527.98 : x
  2. Step 2: Convert to fraction form
    21,063.16/31,578.23 = 10,527.98/x
  3. Step 3: Cross multiply
    21,063.16x = 31,578.23 × 10,527.98
  4. Step 4: Simplify right side
    21,063.16x = 332,454,812.69
  5. Step 5: Solve for x
    x = 332,454,812.69/21,063.16
  6. Step 6: Final answer
    x = 15,783.71

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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.