Home / 27,856.32-38,442.72-15,281.44

Finding the Fourth Proportional to 27,856.32, 38,442.72 and 15,281.44

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Solution

The fourth proportional to 27,856.32, 38,442.72 and 15,281.44 is: 21,088.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,856.32 : 38,442.72 = 15,281.44 : x
  2. Step 2: Convert to fraction form
    27,856.32/38,442.72 = 15,281.44/x
  3. Step 3: Cross multiply
    27,856.32x = 38,442.72 × 15,281.44
  4. Step 4: Simplify right side
    27,856.32x = 587,460,119.12
  5. Step 5: Solve for x
    x = 587,460,119.12/27,856.32
  6. Step 6: Final answer
    x = 21,088.93

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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.