Home / 20,541.84-28,347.70-11,110.39

Finding the Fourth Proportional to 20,541.84, 28,347.70 and 11,110.39

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Solution

The fourth proportional to 20,541.84, 28,347.70 and 11,110.39 is: 15,332.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,541.84 : 28,347.70 = 11,110.39 : x
  2. Step 2: Convert to fraction form
    20,541.84/28,347.70 = 11,110.39/x
  3. Step 3: Cross multiply
    20,541.84x = 28,347.70 × 11,110.39
  4. Step 4: Simplify right side
    20,541.84x = 314,954,002.60
  5. Step 5: Solve for x
    x = 314,954,002.60/20,541.84
  6. Step 6: Final answer
    x = 15,332.32

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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.