Home / 57,326.55-85,937.98-20,381.91

Finding the Fourth Proportional to 57,326.55, 85,937.98 and 20,381.91

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Solution

The fourth proportional to 57,326.55, 85,937.98 and 20,381.91 is: 30,554.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,326.55 : 85,937.98 = 20,381.91 : x
  2. Step 2: Convert to fraction form
    57,326.55/85,937.98 = 20,381.91/x
  3. Step 3: Cross multiply
    57,326.55x = 85,937.98 × 20,381.91
  4. Step 4: Simplify right side
    57,326.55x = 1,751,580,173.94
  5. Step 5: Solve for x
    x = 1,751,580,173.94/57,326.55
  6. Step 6: Final answer
    x = 30,554.43

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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.