Home / 28,518.82-39,381.18-17,782.02

Finding the Fourth Proportional to 28,518.82, 39,381.18 and 17,782.02

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Solution

The fourth proportional to 28,518.82, 39,381.18 and 17,782.02 is: 24,554.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,518.82 : 39,381.18 = 17,782.02 : x
  2. Step 2: Convert to fraction form
    28,518.82/39,381.18 = 17,782.02/x
  3. Step 3: Cross multiply
    28,518.82x = 39,381.18 × 17,782.02
  4. Step 4: Simplify right side
    28,518.82x = 700,276,930.38
  5. Step 5: Solve for x
    x = 700,276,930.38/28,518.82
  6. Step 6: Final answer
    x = 24,554.91

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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.