Home / 39,440.32-59,131.28-18,639.52

Finding the Fourth Proportional to 39,440.32, 59,131.28 and 18,639.52

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Solution

The fourth proportional to 39,440.32, 59,131.28 and 18,639.52 is: 27,945.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,440.32 : 59,131.28 = 18,639.52 : x
  2. Step 2: Convert to fraction form
    39,440.32/59,131.28 = 18,639.52/x
  3. Step 3: Cross multiply
    39,440.32x = 59,131.28 × 18,639.52
  4. Step 4: Simplify right side
    39,440.32x = 1,102,178,676.19
  5. Step 5: Solve for x
    x = 1,102,178,676.19/39,440.32
  6. Step 6: Final answer
    x = 27,945.48

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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.