Home / 29,318.70-40,459.35-15,889.85

Finding the Fourth Proportional to 29,318.70, 40,459.35 and 15,889.85

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Solution

The fourth proportional to 29,318.70, 40,459.35 and 15,889.85 is: 21,927.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,318.70 : 40,459.35 = 15,889.85 : x
  2. Step 2: Convert to fraction form
    29,318.70/40,459.35 = 15,889.85/x
  3. Step 3: Cross multiply
    29,318.70x = 40,459.35 × 15,889.85
  4. Step 4: Simplify right side
    29,318.70x = 642,892,720.85
  5. Step 5: Solve for x
    x = 642,892,720.85/29,318.70
  6. Step 6: Final answer
    x = 21,927.74

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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.