Home / 28,159.39-38,863.50-18,476.99

Finding the Fourth Proportional to 28,159.39, 38,863.50 and 18,476.99

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Solution

The fourth proportional to 28,159.39, 38,863.50 and 18,476.99 is: 25,500.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,159.39 : 38,863.50 = 18,476.99 : x
  2. Step 2: Convert to fraction form
    28,159.39/38,863.50 = 18,476.99/x
  3. Step 3: Cross multiply
    28,159.39x = 38,863.50 × 18,476.99
  4. Step 4: Simplify right side
    28,159.39x = 718,080,383.00
  5. Step 5: Solve for x
    x = 718,080,383.00/28,159.39
  6. Step 6: Final answer
    x = 25,500.56

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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.