Home / 40,901.79-61,385.50-21,185.99

Finding the Fourth Proportional to 40,901.79, 61,385.50 and 21,185.99

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Solution

The fourth proportional to 40,901.79, 61,385.50 and 21,185.99 is: 31,795.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,901.79 : 61,385.50 = 21,185.99 : x
  2. Step 2: Convert to fraction form
    40,901.79/61,385.50 = 21,185.99/x
  3. Step 3: Cross multiply
    40,901.79x = 61,385.50 × 21,185.99
  4. Step 4: Simplify right side
    40,901.79x = 1,300,512,229.25
  5. Step 5: Solve for x
    x = 1,300,512,229.25/40,901.79
  6. Step 6: Final answer
    x = 31,795.97

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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.