Home / 21,270.76-29,350.02-11,837.50

Finding the Fourth Proportional to 21,270.76, 29,350.02 and 11,837.50

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Solution

The fourth proportional to 21,270.76, 29,350.02 and 11,837.50 is: 16,333.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,270.76 : 29,350.02 = 11,837.50 : x
  2. Step 2: Convert to fraction form
    21,270.76/29,350.02 = 11,837.50/x
  3. Step 3: Cross multiply
    21,270.76x = 29,350.02 × 11,837.50
  4. Step 4: Simplify right side
    21,270.76x = 347,430,861.75
  5. Step 5: Solve for x
    x = 347,430,861.75/21,270.76
  6. Step 6: Final answer
    x = 16,333.73

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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.