Home / 28,973.96-39,981.30-23,020.04

Finding the Fourth Proportional to 28,973.96, 39,981.30 and 23,020.04

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Solution

The fourth proportional to 28,973.96, 39,981.30 and 23,020.04 is: 31,765.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,973.96 : 39,981.30 = 23,020.04 : x
  2. Step 2: Convert to fraction form
    28,973.96/39,981.30 = 23,020.04/x
  3. Step 3: Cross multiply
    28,973.96x = 39,981.30 × 23,020.04
  4. Step 4: Simplify right side
    28,973.96x = 920,371,125.25
  5. Step 5: Solve for x
    x = 920,371,125.25/28,973.96
  6. Step 6: Final answer
    x = 31,765.46

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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.