Home / 20,717.17-28,577.34-13,048.23

Finding the Fourth Proportional to 20,717.17, 28,577.34 and 13,048.23

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Solution

The fourth proportional to 20,717.17, 28,577.34 and 13,048.23 is: 17,998.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,717.17 : 28,577.34 = 13,048.23 : x
  2. Step 2: Convert to fraction form
    20,717.17/28,577.34 = 13,048.23/x
  3. Step 3: Cross multiply
    20,717.17x = 28,577.34 × 13,048.23
  4. Step 4: Simplify right side
    20,717.17x = 372,883,705.11
  5. Step 5: Solve for x
    x = 372,883,705.11/20,717.17
  6. Step 6: Final answer
    x = 17,998.78

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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.