Home / 20,914.91-28,862.62-11,484.08

Finding the Fourth Proportional to 20,914.91, 28,862.62 and 11,484.08

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Solution

The fourth proportional to 20,914.91, 28,862.62 and 11,484.08 is: 15,848.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,914.91 : 28,862.62 = 11,484.08 : x
  2. Step 2: Convert to fraction form
    20,914.91/28,862.62 = 11,484.08/x
  3. Step 3: Cross multiply
    20,914.91x = 28,862.62 × 11,484.08
  4. Step 4: Simplify right side
    20,914.91x = 331,460,637.09
  5. Step 5: Solve for x
    x = 331,460,637.09/20,914.91
  6. Step 6: Final answer
    x = 15,848.05

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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.