Home / 18,756.09-28,228.05-14,100.21

Finding the Fourth Proportional to 18,756.09, 28,228.05 and 14,100.21

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Solution

The fourth proportional to 18,756.09, 28,228.05 and 14,100.21 is: 21,220.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,756.09 : 28,228.05 = 14,100.21 : x
  2. Step 2: Convert to fraction form
    18,756.09/28,228.05 = 14,100.21/x
  3. Step 3: Cross multiply
    18,756.09x = 28,228.05 × 14,100.21
  4. Step 4: Simplify right side
    18,756.09x = 398,021,432.89
  5. Step 5: Solve for x
    x = 398,021,432.89/18,756.09
  6. Step 6: Final answer
    x = 21,220.92

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.