Home / 21,756.45-32,638.76-6,961.40

Finding the Fourth Proportional to 21,756.45, 32,638.76 and 6,961.40

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Solution

The fourth proportional to 21,756.45, 32,638.76 and 6,961.40 is: 10,443.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,756.45 : 32,638.76 = 6,961.40 : x
  2. Step 2: Convert to fraction form
    21,756.45/32,638.76 = 6,961.40/x
  3. Step 3: Cross multiply
    21,756.45x = 32,638.76 × 6,961.40
  4. Step 4: Simplify right side
    21,756.45x = 227,211,463.86
  5. Step 5: Solve for x
    x = 227,211,463.86/21,756.45
  6. Step 6: Final answer
    x = 10,443.41

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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.