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Finding the Fourth Proportional to 27,631.21, 38,130.04 and 16,894.07

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Solution

The fourth proportional to 27,631.21, 38,130.04 and 16,894.07 is: 23,313.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,631.21 : 38,130.04 = 16,894.07 : x
  2. Step 2: Convert to fraction form
    27,631.21/38,130.04 = 16,894.07/x
  3. Step 3: Cross multiply
    27,631.21x = 38,130.04 × 16,894.07
  4. Step 4: Simplify right side
    27,631.21x = 644,171,564.86
  5. Step 5: Solve for x
    x = 644,171,564.86/27,631.21
  6. Step 6: Final answer
    x = 23,313.19

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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.