Home / 28,330.70-39,098.30-18,753.93

Finding the Fourth Proportional to 28,330.70, 39,098.30 and 18,753.93

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Solution

The fourth proportional to 28,330.70, 39,098.30 and 18,753.93 is: 25,881.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,330.70 : 39,098.30 = 18,753.93 : x
  2. Step 2: Convert to fraction form
    28,330.70/39,098.30 = 18,753.93/x
  3. Step 3: Cross multiply
    28,330.70x = 39,098.30 × 18,753.93
  4. Step 4: Simplify right side
    28,330.70x = 733,246,687.55
  5. Step 5: Solve for x
    x = 733,246,687.55/28,330.70
  6. Step 6: Final answer
    x = 25,881.70

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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.