Home / 18,733.52-25,840.68-15,700.88

Finding the Fourth Proportional to 18,733.52, 25,840.68 and 15,700.88

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Solution

The fourth proportional to 18,733.52, 25,840.68 and 15,700.88 is: 21,657.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,733.52 : 25,840.68 = 15,700.88 : x
  2. Step 2: Convert to fraction form
    18,733.52/25,840.68 = 15,700.88/x
  3. Step 3: Cross multiply
    18,733.52x = 25,840.68 × 15,700.88
  4. Step 4: Simplify right side
    18,733.52x = 405,721,415.80
  5. Step 5: Solve for x
    x = 405,721,415.80/18,733.52
  6. Step 6: Final answer
    x = 21,657.51

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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.