Home / 20,032.92-27,636.12-12,961.62

Finding the Fourth Proportional to 20,032.92, 27,636.12 and 12,961.62

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Solution

The fourth proportional to 20,032.92, 27,636.12 and 12,961.62 is: 17,881.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,032.92 : 27,636.12 = 12,961.62 : x
  2. Step 2: Convert to fraction form
    20,032.92/27,636.12 = 12,961.62/x
  3. Step 3: Cross multiply
    20,032.92x = 27,636.12 × 12,961.62
  4. Step 4: Simplify right side
    20,032.92x = 358,208,885.71
  5. Step 5: Solve for x
    x = 358,208,885.71/20,032.92
  6. Step 6: Final answer
    x = 17,881.01

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.