Home / 39,895.20-59,804.40-31,005.60

Finding the Fourth Proportional to 39,895.20, 59,804.40 and 31,005.60

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Solution

The fourth proportional to 39,895.20, 59,804.40 and 31,005.60 is: 46,478.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,895.20 : 59,804.40 = 31,005.60 : x
  2. Step 2: Convert to fraction form
    39,895.20/59,804.40 = 31,005.60/x
  3. Step 3: Cross multiply
    39,895.20x = 59,804.40 × 31,005.60
  4. Step 4: Simplify right side
    39,895.20x = 1,854,271,304.64
  5. Step 5: Solve for x
    x = 1,854,271,304.64/39,895.20
  6. Step 6: Final answer
    x = 46,478.56

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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.