Home / 21,695.64-29,918.43-16,330.92

Finding the Fourth Proportional to 21,695.64, 29,918.43 and 16,330.92

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Solution

The fourth proportional to 21,695.64, 29,918.43 and 16,330.92 is: 22,520.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,695.64 : 29,918.43 = 16,330.92 : x
  2. Step 2: Convert to fraction form
    21,695.64/29,918.43 = 16,330.92/x
  3. Step 3: Cross multiply
    21,695.64x = 29,918.43 × 16,330.92
  4. Step 4: Simplify right side
    21,695.64x = 488,595,486.86
  5. Step 5: Solve for x
    x = 488,595,486.86/21,695.64
  6. Step 6: Final answer
    x = 22,520.45

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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.