Home / 21,461.21-32,186.90-5,880.05

Finding the Fourth Proportional to 21,461.21, 32,186.90 and 5,880.05

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Solution

The fourth proportional to 21,461.21, 32,186.90 and 5,880.05 is: 8,818.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,461.21 : 32,186.90 = 5,880.05 : x
  2. Step 2: Convert to fraction form
    21,461.21/32,186.90 = 5,880.05/x
  3. Step 3: Cross multiply
    21,461.21x = 32,186.90 × 5,880.05
  4. Step 4: Simplify right side
    21,461.21x = 189,260,551.94
  5. Step 5: Solve for x
    x = 189,260,551.94/21,461.21
  6. Step 6: Final answer
    x = 8,818.73

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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.