Home / 21,461.52-32,196.32-8,639.67

Finding the Fourth Proportional to 21,461.52, 32,196.32 and 8,639.67

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Solution

The fourth proportional to 21,461.52, 32,196.32 and 8,639.67 is: 12,961.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,461.52 : 32,196.32 = 8,639.67 : x
  2. Step 2: Convert to fraction form
    21,461.52/32,196.32 = 8,639.67/x
  3. Step 3: Cross multiply
    21,461.52x = 32,196.32 × 8,639.67
  4. Step 4: Simplify right side
    21,461.52x = 278,165,580.01
  5. Step 5: Solve for x
    x = 278,165,580.01/21,461.52
  6. Step 6: Final answer
    x = 12,961.13

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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.