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Finding the Fourth Proportional to 20,360.00, 30,529.59 and 8,510.55

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Solution

The fourth proportional to 20,360.00, 30,529.59 and 8,510.55 is: 12,761.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,360.00 : 30,529.59 = 8,510.55 : x
  2. Step 2: Convert to fraction form
    20,360.00/30,529.59 = 8,510.55/x
  3. Step 3: Cross multiply
    20,360.00x = 30,529.59 × 8,510.55
  4. Step 4: Simplify right side
    20,360.00x = 259,823,455.77
  5. Step 5: Solve for x
    x = 259,823,455.77/20,360.00
  6. Step 6: Final answer
    x = 12,761.46

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.