Home / 28,582.21-39,442.92-15,835.12

Finding the Fourth Proportional to 28,582.21, 39,442.92 and 15,835.12

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Solution

The fourth proportional to 28,582.21, 39,442.92 and 15,835.12 is: 21,852.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,582.21 : 39,442.92 = 15,835.12 : x
  2. Step 2: Convert to fraction form
    28,582.21/39,442.92 = 15,835.12/x
  3. Step 3: Cross multiply
    28,582.21x = 39,442.92 × 15,835.12
  4. Step 4: Simplify right side
    28,582.21x = 624,583,174.14
  5. Step 5: Solve for x
    x = 624,583,174.14/28,582.21
  6. Step 6: Final answer
    x = 21,852.17

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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.