Home / 20,394.42-30,525.96-10,520.10

Finding the Fourth Proportional to 20,394.42, 30,525.96 and 10,520.10

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Solution

The fourth proportional to 20,394.42, 30,525.96 and 10,520.10 is: 15,746.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,394.42 : 30,525.96 = 10,520.10 : x
  2. Step 2: Convert to fraction form
    20,394.42/30,525.96 = 10,520.10/x
  3. Step 3: Cross multiply
    20,394.42x = 30,525.96 × 10,520.10
  4. Step 4: Simplify right side
    20,394.42x = 321,136,151.80
  5. Step 5: Solve for x
    x = 321,136,151.80/20,394.42
  6. Step 6: Final answer
    x = 15,746.28

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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.