Home / 21,703.40-32,556.36-8,376.47

Finding the Fourth Proportional to 21,703.40, 32,556.36 and 8,376.47

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Solution

The fourth proportional to 21,703.40, 32,556.36 and 8,376.47 is: 12,565.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,703.40 : 32,556.36 = 8,376.47 : x
  2. Step 2: Convert to fraction form
    21,703.40/32,556.36 = 8,376.47/x
  3. Step 3: Cross multiply
    21,703.40x = 32,556.36 × 8,376.47
  4. Step 4: Simplify right side
    21,703.40x = 272,707,372.85
  5. Step 5: Solve for x
    x = 272,707,372.85/21,703.40
  6. Step 6: Final answer
    x = 12,565.19

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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.