Home / 19,284.48-28,892.40-13,429.68

Finding the Fourth Proportional to 19,284.48, 28,892.40 and 13,429.68

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Solution

The fourth proportional to 19,284.48, 28,892.40 and 13,429.68 is: 20,120.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,284.48 : 28,892.40 = 13,429.68 : x
  2. Step 2: Convert to fraction form
    19,284.48/28,892.40 = 13,429.68/x
  3. Step 3: Cross multiply
    19,284.48x = 28,892.40 × 13,429.68
  4. Step 4: Simplify right side
    19,284.48x = 388,015,686.43
  5. Step 5: Solve for x
    x = 388,015,686.43/19,284.48
  6. Step 6: Final answer
    x = 20,120.62

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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.