Home / 20,289.96-27,966.69-13,573.17

Finding the Fourth Proportional to 20,289.96, 27,966.69 and 13,573.17

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Solution

The fourth proportional to 20,289.96, 27,966.69 and 13,573.17 is: 18,708.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,289.96 : 27,966.69 = 13,573.17 : x
  2. Step 2: Convert to fraction form
    20,289.96/27,966.69 = 13,573.17/x
  3. Step 3: Cross multiply
    20,289.96x = 27,966.69 × 13,573.17
  4. Step 4: Simplify right side
    20,289.96x = 379,596,637.71
  5. Step 5: Solve for x
    x = 379,596,637.71/20,289.96
  6. Step 6: Final answer
    x = 18,708.59

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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.