Home / 28,082.67-42,102.93-16,987.08

Finding the Fourth Proportional to 28,082.67, 42,102.93 and 16,987.08

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Solution

The fourth proportional to 28,082.67, 42,102.93 and 16,987.08 is: 25,467.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,082.67 : 42,102.93 = 16,987.08 : x
  2. Step 2: Convert to fraction form
    28,082.67/42,102.93 = 16,987.08/x
  3. Step 3: Cross multiply
    28,082.67x = 42,102.93 × 16,987.08
  4. Step 4: Simplify right side
    28,082.67x = 715,205,840.14
  5. Step 5: Solve for x
    x = 715,205,840.14/28,082.67
  6. Step 6: Final answer
    x = 25,467.87

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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.