Home / 40,005.09-60,043.88-21,300.98

Finding the Fourth Proportional to 40,005.09, 60,043.88 and 21,300.98

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Solution

The fourth proportional to 40,005.09, 60,043.88 and 21,300.98 is: 31,970.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,005.09 : 60,043.88 = 21,300.98 : x
  2. Step 2: Convert to fraction form
    40,005.09/60,043.88 = 21,300.98/x
  3. Step 3: Cross multiply
    40,005.09x = 60,043.88 × 21,300.98
  4. Step 4: Simplify right side
    40,005.09x = 1,278,993,240.04
  5. Step 5: Solve for x
    x = 1,278,993,240.04/40,005.09
  6. Step 6: Final answer
    x = 31,970.76

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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.