Home / 18,707.90-28,100.74-14,839.34

Finding the Fourth Proportional to 18,707.90, 28,100.74 and 14,839.34

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Solution

The fourth proportional to 18,707.90, 28,100.74 and 14,839.34 is: 22,289.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,707.90 : 28,100.74 = 14,839.34 : x
  2. Step 2: Convert to fraction form
    18,707.90/28,100.74 = 14,839.34/x
  3. Step 3: Cross multiply
    18,707.90x = 28,100.74 × 14,839.34
  4. Step 4: Simplify right side
    18,707.90x = 416,996,435.11
  5. Step 5: Solve for x
    x = 416,996,435.11/18,707.90
  6. Step 6: Final answer
    x = 22,289.86

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.