Home / 21,351.23-29,462.45-12,396.98

Finding the Fourth Proportional to 21,351.23, 29,462.45 and 12,396.98

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Solution

The fourth proportional to 21,351.23, 29,462.45 and 12,396.98 is: 17,106.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,351.23 : 29,462.45 = 12,396.98 : x
  2. Step 2: Convert to fraction form
    21,351.23/29,462.45 = 12,396.98/x
  3. Step 3: Cross multiply
    21,351.23x = 29,462.45 × 12,396.98
  4. Step 4: Simplify right side
    21,351.23x = 365,245,484.81
  5. Step 5: Solve for x
    x = 365,245,484.81/21,351.23
  6. Step 6: Final answer
    x = 17,106.53

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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.