Home / 20,106.30-30,123.45-9,695.10

Finding the Fourth Proportional to 20,106.30, 30,123.45 and 9,695.10

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Solution

The fourth proportional to 20,106.30, 30,123.45 and 9,695.10 is: 14,525.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,106.30 : 30,123.45 = 9,695.10 : x
  2. Step 2: Convert to fraction form
    20,106.30/30,123.45 = 9,695.10/x
  3. Step 3: Cross multiply
    20,106.30x = 30,123.45 × 9,695.10
  4. Step 4: Simplify right side
    20,106.30x = 292,049,860.10
  5. Step 5: Solve for x
    x = 292,049,860.10/20,106.30
  6. Step 6: Final answer
    x = 14,525.29

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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.