Home / 27,886.85-38,483.91-15,140.05

Finding the Fourth Proportional to 27,886.85, 38,483.91 and 15,140.05

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Solution

The fourth proportional to 27,886.85, 38,483.91 and 15,140.05 is: 20,893.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,886.85 : 38,483.91 = 15,140.05 : x
  2. Step 2: Convert to fraction form
    27,886.85/38,483.91 = 15,140.05/x
  3. Step 3: Cross multiply
    27,886.85x = 38,483.91 × 15,140.05
  4. Step 4: Simplify right side
    27,886.85x = 582,648,225.39
  5. Step 5: Solve for x
    x = 582,648,225.39/27,886.85
  6. Step 6: Final answer
    x = 20,893.30

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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.