Home / 30,898.14-42,659.91-18,326.94

Finding the Fourth Proportional to 30,898.14, 42,659.91 and 18,326.94

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Solution

The fourth proportional to 30,898.14, 42,659.91 and 18,326.94 is: 25,303.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,898.14 : 42,659.91 = 18,326.94 : x
  2. Step 2: Convert to fraction form
    30,898.14/42,659.91 = 18,326.94/x
  3. Step 3: Cross multiply
    30,898.14x = 42,659.91 × 18,326.94
  4. Step 4: Simplify right side
    30,898.14x = 781,825,610.98
  5. Step 5: Solve for x
    x = 781,825,610.98/30,898.14
  6. Step 6: Final answer
    x = 25,303.32

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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.