Home / 29,319.75-40,461.03-15,890.96

Finding the Fourth Proportional to 29,319.75, 40,461.03 and 15,890.96

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Solution

The fourth proportional to 29,319.75, 40,461.03 and 15,890.96 is: 21,929.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,319.75 : 40,461.03 = 15,890.96 : x
  2. Step 2: Convert to fraction form
    29,319.75/40,461.03 = 15,890.96/x
  3. Step 3: Cross multiply
    29,319.75x = 40,461.03 × 15,890.96
  4. Step 4: Simplify right side
    29,319.75x = 642,964,710.44
  5. Step 5: Solve for x
    x = 642,964,710.44/29,319.75
  6. Step 6: Final answer
    x = 21,929.41

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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.