Home / 20,734.51-28,614.21-12,669.48

Finding the Fourth Proportional to 20,734.51, 28,614.21 and 12,669.48

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Solution

The fourth proportional to 20,734.51, 28,614.21 and 12,669.48 is: 17,484.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,734.51 : 28,614.21 = 12,669.48 : x
  2. Step 2: Convert to fraction form
    20,734.51/28,614.21 = 12,669.48/x
  3. Step 3: Cross multiply
    20,734.51x = 28,614.21 × 12,669.48
  4. Step 4: Simplify right side
    20,734.51x = 362,527,161.31
  5. Step 5: Solve for x
    x = 362,527,161.31/20,734.51
  6. Step 6: Final answer
    x = 17,484.24

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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.