Home / 20,214.50-27,898.47-12,256.70

Finding the Fourth Proportional to 20,214.50, 27,898.47 and 12,256.70

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Solution

The fourth proportional to 20,214.50, 27,898.47 and 12,256.70 is: 16,915.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,214.50 : 27,898.47 = 12,256.70 : x
  2. Step 2: Convert to fraction form
    20,214.50/27,898.47 = 12,256.70/x
  3. Step 3: Cross multiply
    20,214.50x = 27,898.47 × 12,256.70
  4. Step 4: Simplify right side
    20,214.50x = 341,943,037.76
  5. Step 5: Solve for x
    x = 341,943,037.76/20,214.50
  6. Step 6: Final answer
    x = 16,915.73

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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.