Home / 19,072.64-28,549.02-13,211.48

Finding the Fourth Proportional to 19,072.64, 28,549.02 and 13,211.48

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Solution

The fourth proportional to 19,072.64, 28,549.02 and 13,211.48 is: 19,775.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,072.64 : 28,549.02 = 13,211.48 : x
  2. Step 2: Convert to fraction form
    19,072.64/28,549.02 = 13,211.48/x
  3. Step 3: Cross multiply
    19,072.64x = 28,549.02 × 13,211.48
  4. Step 4: Simplify right side
    19,072.64x = 377,174,806.75
  5. Step 5: Solve for x
    x = 377,174,806.75/19,072.64
  6. Step 6: Final answer
    x = 19,775.70

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1.5x scale

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.