Home / 20,071.42-30,113.08-6,925.12

Finding the Fourth Proportional to 20,071.42, 30,113.08 and 6,925.12

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Solution

The fourth proportional to 20,071.42, 30,113.08 and 6,925.12 is: 10,389.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,071.42 : 30,113.08 = 6,925.12 : x
  2. Step 2: Convert to fraction form
    20,071.42/30,113.08 = 6,925.12/x
  3. Step 3: Cross multiply
    20,071.42x = 30,113.08 × 6,925.12
  4. Step 4: Simplify right side
    20,071.42x = 208,536,692.57
  5. Step 5: Solve for x
    x = 208,536,692.57/20,071.42
  6. Step 6: Final answer
    x = 10,389.73

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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.