Home / 21,544.89-29,731.66-12,113.45

Finding the Fourth Proportional to 21,544.89, 29,731.66 and 12,113.45

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Solution

The fourth proportional to 21,544.89, 29,731.66 and 12,113.45 is: 16,716.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,544.89 : 29,731.66 = 12,113.45 : x
  2. Step 2: Convert to fraction form
    21,544.89/29,731.66 = 12,113.45/x
  3. Step 3: Cross multiply
    21,544.89x = 29,731.66 × 12,113.45
  4. Step 4: Simplify right side
    21,544.89x = 360,152,909.38
  5. Step 5: Solve for x
    x = 360,152,909.38/21,544.89
  6. Step 6: Final answer
    x = 16,716.40

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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.