Home / 21,971.52-30,334.50-16,926.21

Finding the Fourth Proportional to 21,971.52, 30,334.50 and 16,926.21

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Solution

The fourth proportional to 21,971.52, 30,334.50 and 16,926.21 is: 23,368.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,971.52 : 30,334.50 = 16,926.21 : x
  2. Step 2: Convert to fraction form
    21,971.52/30,334.50 = 16,926.21/x
  3. Step 3: Cross multiply
    21,971.52x = 30,334.50 × 16,926.21
  4. Step 4: Simplify right side
    21,971.52x = 513,448,117.25
  5. Step 5: Solve for x
    x = 513,448,117.25/21,971.52
  6. Step 6: Final answer
    x = 23,368.80

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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.