Home / 39,803.20-59,632.80-31,537.60

Finding the Fourth Proportional to 39,803.20, 59,632.80 and 31,537.60

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Solution

The fourth proportional to 39,803.20, 59,632.80 and 31,537.60 is: 47,249.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,803.20 : 59,632.80 = 31,537.60 : x
  2. Step 2: Convert to fraction form
    39,803.20/59,632.80 = 31,537.60/x
  3. Step 3: Cross multiply
    39,803.20x = 59,632.80 × 31,537.60
  4. Step 4: Simplify right side
    39,803.20x = 1,880,675,393.28
  5. Step 5: Solve for x
    x = 1,880,675,393.28/39,803.20
  6. Step 6: Final answer
    x = 47,249.35

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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.