Home / 27,438.48-37,865.12-14,863.28

Finding the Fourth Proportional to 27,438.48, 37,865.12 and 14,863.28

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Solution

The fourth proportional to 27,438.48, 37,865.12 and 14,863.28 is: 20,511.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,438.48 : 37,865.12 = 14,863.28 : x
  2. Step 2: Convert to fraction form
    27,438.48/37,865.12 = 14,863.28/x
  3. Step 3: Cross multiply
    27,438.48x = 37,865.12 × 14,863.28
  4. Step 4: Simplify right side
    27,438.48x = 562,799,880.79
  5. Step 5: Solve for x
    x = 562,799,880.79/27,438.48
  6. Step 6: Final answer
    x = 20,511.34

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.