Home / 21,089.40-31,633.30-5,294.53

Finding the Fourth Proportional to 21,089.40, 31,633.30 and 5,294.53

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Solution

The fourth proportional to 21,089.40, 31,633.30 and 5,294.53 is: 7,941.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,089.40 : 31,633.30 = 5,294.53 : x
  2. Step 2: Convert to fraction form
    21,089.40/31,633.30 = 5,294.53/x
  3. Step 3: Cross multiply
    21,089.40x = 31,633.30 × 5,294.53
  4. Step 4: Simplify right side
    21,089.40x = 167,483,455.85
  5. Step 5: Solve for x
    x = 167,483,455.85/21,089.40
  6. Step 6: Final answer
    x = 7,941.59

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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.