Home / 21,681.72-32,522.13-6,890.67

Finding the Fourth Proportional to 21,681.72, 32,522.13 and 6,890.67

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Solution

The fourth proportional to 21,681.72, 32,522.13 and 6,890.67 is: 10,335.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,681.72 : 32,522.13 = 6,890.67 : x
  2. Step 2: Convert to fraction form
    21,681.72/32,522.13 = 6,890.67/x
  3. Step 3: Cross multiply
    21,681.72x = 32,522.13 × 6,890.67
  4. Step 4: Simplify right side
    21,681.72x = 224,099,265.53
  5. Step 5: Solve for x
    x = 224,099,265.53/21,681.72
  6. Step 6: Final answer
    x = 10,335.86

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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.