Home / 27,378.72-37,782.45-15,442.16

Finding the Fourth Proportional to 27,378.72, 37,782.45 and 15,442.16

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Solution

The fourth proportional to 27,378.72, 37,782.45 and 15,442.16 is: 21,310.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,378.72 : 37,782.45 = 15,442.16 : x
  2. Step 2: Convert to fraction form
    27,378.72/37,782.45 = 15,442.16/x
  3. Step 3: Cross multiply
    27,378.72x = 37,782.45 × 15,442.16
  4. Step 4: Simplify right side
    27,378.72x = 583,442,449.18
  5. Step 5: Solve for x
    x = 583,442,449.18/27,378.72
  6. Step 6: Final answer
    x = 21,310.07

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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.