Home / 39,840.80-59,746.92-13,181.88

Finding the Fourth Proportional to 39,840.80, 59,746.92 and 13,181.88

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Solution

The fourth proportional to 39,840.80, 59,746.92 and 13,181.88 is: 19,768.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,840.80 : 59,746.92 = 13,181.88 : x
  2. Step 2: Convert to fraction form
    39,840.80/59,746.92 = 13,181.88/x
  3. Step 3: Cross multiply
    39,840.80x = 59,746.92 × 13,181.88
  4. Step 4: Simplify right side
    39,840.80x = 787,576,729.81
  5. Step 5: Solve for x
    x = 787,576,729.81/39,840.80
  6. Step 6: Final answer
    x = 19,768.10

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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.