Home / 29,628.78-40,898.89-17,687.76

Finding the Fourth Proportional to 29,628.78, 40,898.89 and 17,687.76

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Solution

The fourth proportional to 29,628.78, 40,898.89 and 17,687.76 is: 24,415.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,628.78 : 40,898.89 = 17,687.76 : x
  2. Step 2: Convert to fraction form
    29,628.78/40,898.89 = 17,687.76/x
  3. Step 3: Cross multiply
    29,628.78x = 40,898.89 × 17,687.76
  4. Step 4: Simplify right side
    29,628.78x = 723,409,750.59
  5. Step 5: Solve for x
    x = 723,409,750.59/29,628.78
  6. Step 6: Final answer
    x = 24,415.78

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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.