Home / 27,422.32-37,840.45-15,780.92

Finding the Fourth Proportional to 27,422.32, 37,840.45 and 15,780.92

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Solution

The fourth proportional to 27,422.32, 37,840.45 and 15,780.92 is: 21,776.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,422.32 : 37,840.45 = 15,780.92 : x
  2. Step 2: Convert to fraction form
    27,422.32/37,840.45 = 15,780.92/x
  3. Step 3: Cross multiply
    27,422.32x = 37,840.45 × 15,780.92
  4. Step 4: Simplify right side
    27,422.32x = 597,157,114.21
  5. Step 5: Solve for x
    x = 597,157,114.21/27,422.32
  6. Step 6: Final answer
    x = 21,776.32

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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.