Home / 19,270.71-28,892.04-13,015.21

Finding the Fourth Proportional to 19,270.71, 28,892.04 and 13,015.21

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Solution

The fourth proportional to 19,270.71, 28,892.04 and 13,015.21 is: 19,513.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,270.71 : 28,892.04 = 13,015.21 : x
  2. Step 2: Convert to fraction form
    19,270.71/28,892.04 = 13,015.21/x
  3. Step 3: Cross multiply
    19,270.71x = 28,892.04 × 13,015.21
  4. Step 4: Simplify right side
    19,270.71x = 376,035,967.93
  5. Step 5: Solve for x
    x = 376,035,967.93/19,270.71
  6. Step 6: Final answer
    x = 19,513.34

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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.