Home / 20,528.34-28,336.14-12,033.20

Finding the Fourth Proportional to 20,528.34, 28,336.14 and 12,033.20

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Solution

The fourth proportional to 20,528.34, 28,336.14 and 12,033.20 is: 16,609.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,528.34 : 28,336.14 = 12,033.20 : x
  2. Step 2: Convert to fraction form
    20,528.34/28,336.14 = 12,033.20/x
  3. Step 3: Cross multiply
    20,528.34x = 28,336.14 × 12,033.20
  4. Step 4: Simplify right side
    20,528.34x = 340,974,298.17
  5. Step 5: Solve for x
    x = 340,974,298.17/20,528.34
  6. Step 6: Final answer
    x = 16,609.93

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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.