Home / 29,239.99-40,351-15,811.27

Finding the Fourth Proportional to 29,239.99, 40,351 and 15,811.27

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Solution

The fourth proportional to 29,239.99, 40,351 and 15,811.27 is: 21,819.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,239.99 : 40,351 = 15,811.27 : x
  2. Step 2: Convert to fraction form
    29,239.99/40,351 = 15,811.27/x
  3. Step 3: Cross multiply
    29,239.99x = 40,351 × 15,811.27
  4. Step 4: Simplify right side
    29,239.99x = 638,000,555.77
  5. Step 5: Solve for x
    x = 638,000,555.77/29,239.99
  6. Step 6: Final answer
    x = 21,819.45

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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.