Home / 28,305.36-39,088.14-18,251.88

Finding the Fourth Proportional to 28,305.36, 39,088.14 and 18,251.88

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Solution

The fourth proportional to 28,305.36, 39,088.14 and 18,251.88 is: 25,204.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,305.36 : 39,088.14 = 18,251.88 : x
  2. Step 2: Convert to fraction form
    28,305.36/39,088.14 = 18,251.88/x
  3. Step 3: Cross multiply
    28,305.36x = 39,088.14 × 18,251.88
  4. Step 4: Simplify right side
    28,305.36x = 713,432,040.70
  5. Step 5: Solve for x
    x = 713,432,040.70/28,305.36
  6. Step 6: Final answer
    x = 25,204.84

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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.