Home / 20,477.04-30,773.40-12,158.64

Finding the Fourth Proportional to 20,477.04, 30,773.40 and 12,158.64

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Solution

The fourth proportional to 20,477.04, 30,773.40 and 12,158.64 is: 18,272.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,477.04 : 30,773.40 = 12,158.64 : x
  2. Step 2: Convert to fraction form
    20,477.04/30,773.40 = 12,158.64/x
  3. Step 3: Cross multiply
    20,477.04x = 30,773.40 × 12,158.64
  4. Step 4: Simplify right side
    20,477.04x = 374,162,692.18
  5. Step 5: Solve for x
    x = 374,162,692.18/20,477.04
  6. Step 6: Final answer
    x = 18,272.30

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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.