Home / 20,664.55-28,517.67-12,598.67

Finding the Fourth Proportional to 20,664.55, 28,517.67 and 12,598.67

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Solution

The fourth proportional to 20,664.55, 28,517.67 and 12,598.67 is: 17,386.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,664.55 : 28,517.67 = 12,598.67 : x
  2. Step 2: Convert to fraction form
    20,664.55/28,517.67 = 12,598.67/x
  3. Step 3: Cross multiply
    20,664.55x = 28,517.67 × 12,598.67
  4. Step 4: Simplify right side
    20,664.55x = 359,284,784.79
  5. Step 5: Solve for x
    x = 359,284,784.79/20,664.55
  6. Step 6: Final answer
    x = 17,386.53

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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.