Home / 21,741.09-32,515.80-18,926.85

Finding the Fourth Proportional to 21,741.09, 32,515.80 and 18,926.85

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Solution

The fourth proportional to 21,741.09, 32,515.80 and 18,926.85 is: 28,306.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,741.09 : 32,515.80 = 18,926.85 : x
  2. Step 2: Convert to fraction form
    21,741.09/32,515.80 = 18,926.85/x
  3. Step 3: Cross multiply
    21,741.09x = 32,515.80 × 18,926.85
  4. Step 4: Simplify right side
    21,741.09x = 615,421,669.23
  5. Step 5: Solve for x
    x = 615,421,669.23/21,741.09
  6. Step 6: Final answer
    x = 28,306.85

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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.