Home / 30,665.91-45,998.87-13,124.37

Finding the Fourth Proportional to 30,665.91, 45,998.87 and 13,124.37

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Solution

The fourth proportional to 30,665.91, 45,998.87 and 13,124.37 is: 19,686.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,665.91 : 45,998.87 = 13,124.37 : x
  2. Step 2: Convert to fraction form
    30,665.91/45,998.87 = 13,124.37/x
  3. Step 3: Cross multiply
    30,665.91x = 45,998.87 × 13,124.37
  4. Step 4: Simplify right side
    30,665.91x = 603,706,123.84
  5. Step 5: Solve for x
    x = 603,706,123.84/30,665.91
  6. Step 6: Final answer
    x = 19,686.56

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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.