Home / 20,088.54-27,726.30-12,136.50

Finding the Fourth Proportional to 20,088.54, 27,726.30 and 12,136.50

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Solution

The fourth proportional to 20,088.54, 27,726.30 and 12,136.50 is: 16,750.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,088.54 : 27,726.30 = 12,136.50 : x
  2. Step 2: Convert to fraction form
    20,088.54/27,726.30 = 12,136.50/x
  3. Step 3: Cross multiply
    20,088.54x = 27,726.30 × 12,136.50
  4. Step 4: Simplify right side
    20,088.54x = 336,500,239.95
  5. Step 5: Solve for x
    x = 336,500,239.95/20,088.54
  6. Step 6: Final answer
    x = 16,750.86

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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.