Home / 19,287.49-28,884.52-13,347.74

Finding the Fourth Proportional to 19,287.49, 28,884.52 and 13,347.74

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Solution

The fourth proportional to 19,287.49, 28,884.52 and 13,347.74 is: 19,989.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,287.49 : 28,884.52 = 13,347.74 : x
  2. Step 2: Convert to fraction form
    19,287.49/28,884.52 = 13,347.74/x
  3. Step 3: Cross multiply
    19,287.49x = 28,884.52 × 13,347.74
  4. Step 4: Simplify right side
    19,287.49x = 385,542,918.56
  5. Step 5: Solve for x
    x = 385,542,918.56/19,287.49
  6. Step 6: Final answer
    x = 19,989.27

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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.