Home / 21,352.50-31,988.66-19,741.41

Finding the Fourth Proportional to 21,352.50, 31,988.66 and 19,741.41

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Solution

The fourth proportional to 21,352.50, 31,988.66 and 19,741.41 is: 29,575.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,352.50 : 31,988.66 = 19,741.41 : x
  2. Step 2: Convert to fraction form
    21,352.50/31,988.66 = 19,741.41/x
  3. Step 3: Cross multiply
    21,352.50x = 31,988.66 × 19,741.41
  4. Step 4: Simplify right side
    21,352.50x = 631,501,153.70
  5. Step 5: Solve for x
    x = 631,501,153.70/21,352.50
  6. Step 6: Final answer
    x = 29,575.05

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.