Home / 20,648.06-28,498.47-12,262.94

Finding the Fourth Proportional to 20,648.06, 28,498.47 and 12,262.94

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Solution

The fourth proportional to 20,648.06, 28,498.47 and 12,262.94 is: 16,925.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,648.06 : 28,498.47 = 12,262.94 : x
  2. Step 2: Convert to fraction form
    20,648.06/28,498.47 = 12,262.94/x
  3. Step 3: Cross multiply
    20,648.06x = 28,498.47 × 12,262.94
  4. Step 4: Simplify right side
    20,648.06x = 349,475,027.70
  5. Step 5: Solve for x
    x = 349,475,027.70/20,648.06
  6. Step 6: Final answer
    x = 16,925.32

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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.