Home / 20,337.55-28,068.62-12,271.62

Finding the Fourth Proportional to 20,337.55, 28,068.62 and 12,271.62

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Solution

The fourth proportional to 20,337.55, 28,068.62 and 12,271.62 is: 16,936.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,337.55 : 28,068.62 = 12,271.62 : x
  2. Step 2: Convert to fraction form
    20,337.55/28,068.62 = 12,271.62/x
  3. Step 3: Cross multiply
    20,337.55x = 28,068.62 × 12,271.62
  4. Step 4: Simplify right side
    20,337.55x = 344,447,377.21
  5. Step 5: Solve for x
    x = 344,447,377.21/20,337.55
  6. Step 6: Final answer
    x = 16,936.52

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.