Home / 21,376.24-32,064.90-10,128.94

Finding the Fourth Proportional to 21,376.24, 32,064.90 and 10,128.94

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Solution

The fourth proportional to 21,376.24, 32,064.90 and 10,128.94 is: 15,193.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,376.24 : 32,064.90 = 10,128.94 : x
  2. Step 2: Convert to fraction form
    21,376.24/32,064.90 = 10,128.94/x
  3. Step 3: Cross multiply
    21,376.24x = 32,064.90 × 10,128.94
  4. Step 4: Simplify right side
    21,376.24x = 324,783,448.21
  5. Step 5: Solve for x
    x = 324,783,448.21/21,376.24
  6. Step 6: Final answer
    x = 15,193.67

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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.