Home / 40,014.09-60,021.18-10,431.90

Finding the Fourth Proportional to 40,014.09, 60,021.18 and 10,431.90

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Solution

The fourth proportional to 40,014.09, 60,021.18 and 10,431.90 is: 15,647.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,014.09 : 60,021.18 = 10,431.90 : x
  2. Step 2: Convert to fraction form
    40,014.09/60,021.18 = 10,431.90/x
  3. Step 3: Cross multiply
    40,014.09x = 60,021.18 × 10,431.90
  4. Step 4: Simplify right side
    40,014.09x = 626,134,947.64
  5. Step 5: Solve for x
    x = 626,134,947.64/40,014.09
  6. Step 6: Final answer
    x = 15,647.86

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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.