Home / 20,541.68-28,347.57-11,110.34

Finding the Fourth Proportional to 20,541.68, 28,347.57 and 11,110.34

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Solution

The fourth proportional to 20,541.68, 28,347.57 and 11,110.34 is: 15,332.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,541.68 : 28,347.57 = 11,110.34 : x
  2. Step 2: Convert to fraction form
    20,541.68/28,347.57 = 11,110.34/x
  3. Step 3: Cross multiply
    20,541.68x = 28,347.57 × 11,110.34
  4. Step 4: Simplify right side
    20,541.68x = 314,951,140.87
  5. Step 5: Solve for x
    x = 314,951,140.87/20,541.68
  6. Step 6: Final answer
    x = 15,332.30

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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.