Home / 20,106.80-30,124.20-9,695.60

Finding the Fourth Proportional to 20,106.80, 30,124.20 and 9,695.60

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Solution

The fourth proportional to 20,106.80, 30,124.20 and 9,695.60 is: 14,526.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,106.80 : 30,124.20 = 9,695.60 : x
  2. Step 2: Convert to fraction form
    20,106.80/30,124.20 = 9,695.60/x
  3. Step 3: Cross multiply
    20,106.80x = 30,124.20 × 9,695.60
  4. Step 4: Simplify right side
    20,106.80x = 292,072,193.52
  5. Step 5: Solve for x
    x = 292,072,193.52/20,106.80
  6. Step 6: Final answer
    x = 14,526.04

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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.