Home / 21,187.50-29,243.93-12,233.67

Finding the Fourth Proportional to 21,187.50, 29,243.93 and 12,233.67

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Solution

The fourth proportional to 21,187.50, 29,243.93 and 12,233.67 is: 16,885.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,187.50 : 29,243.93 = 12,233.67 : x
  2. Step 2: Convert to fraction form
    21,187.50/29,243.93 = 12,233.67/x
  3. Step 3: Cross multiply
    21,187.50x = 29,243.93 × 12,233.67
  4. Step 4: Simplify right side
    21,187.50x = 357,760,527.95
  5. Step 5: Solve for x
    x = 357,760,527.95/21,187.50
  6. Step 6: Final answer
    x = 16,885.45

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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.