Home / 25,973.56-38,987.90-21,102.02

Finding the Fourth Proportional to 25,973.56, 38,987.90 and 21,102.02

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Solution

The fourth proportional to 25,973.56, 38,987.90 and 21,102.02 is: 31,675.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,973.56 : 38,987.90 = 21,102.02 : x
  2. Step 2: Convert to fraction form
    25,973.56/38,987.90 = 21,102.02/x
  3. Step 3: Cross multiply
    25,973.56x = 38,987.90 × 21,102.02
  4. Step 4: Simplify right side
    25,973.56x = 822,723,370.45
  5. Step 5: Solve for x
    x = 822,723,370.45/25,973.56
  6. Step 6: Final answer
    x = 31,675.42

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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.