Home / 39,639.36-59,427.18-27,128.64

Finding the Fourth Proportional to 39,639.36, 59,427.18 and 27,128.64

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Solution

The fourth proportional to 39,639.36, 59,427.18 and 27,128.64 is: 40,671.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,639.36 : 59,427.18 = 27,128.64 : x
  2. Step 2: Convert to fraction form
    39,639.36/59,427.18 = 27,128.64/x
  3. Step 3: Cross multiply
    39,639.36x = 59,427.18 × 27,128.64
  4. Step 4: Simplify right side
    39,639.36x = 1,612,178,572.44
  5. Step 5: Solve for x
    x = 1,612,178,572.44/39,639.36
  6. Step 6: Final answer
    x = 40,671.16

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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.