Home / 21,428.76-32,143.38-5,846.40

Finding the Fourth Proportional to 21,428.76, 32,143.38 and 5,846.40

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Solution

The fourth proportional to 21,428.76, 32,143.38 and 5,846.40 is: 8,769.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,428.76 : 32,143.38 = 5,846.40 : x
  2. Step 2: Convert to fraction form
    21,428.76/32,143.38 = 5,846.40/x
  3. Step 3: Cross multiply
    21,428.76x = 32,143.38 × 5,846.40
  4. Step 4: Simplify right side
    21,428.76x = 187,923,056.83
  5. Step 5: Solve for x
    x = 187,923,056.83/21,428.76
  6. Step 6: Final answer
    x = 8,769.67

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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.