Home / 20,527.07-30,802.77-8,680.21

Finding the Fourth Proportional to 20,527.07, 30,802.77 and 8,680.21

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Solution

The fourth proportional to 20,527.07, 30,802.77 and 8,680.21 is: 13,025.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,527.07 : 30,802.77 = 8,680.21 : x
  2. Step 2: Convert to fraction form
    20,527.07/30,802.77 = 8,680.21/x
  3. Step 3: Cross multiply
    20,527.07x = 30,802.77 × 8,680.21
  4. Step 4: Simplify right side
    20,527.07x = 267,374,435.17
  5. Step 5: Solve for x
    x = 267,374,435.17/20,527.07
  6. Step 6: Final answer
    x = 13,025.46

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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.