Home / 30,068.58-45,104.10-13,425.51

Finding the Fourth Proportional to 30,068.58, 45,104.10 and 13,425.51

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Solution

The fourth proportional to 30,068.58, 45,104.10 and 13,425.51 is: 20,138.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,068.58 : 45,104.10 = 13,425.51 : x
  2. Step 2: Convert to fraction form
    30,068.58/45,104.10 = 13,425.51/x
  3. Step 3: Cross multiply
    30,068.58x = 45,104.10 × 13,425.51
  4. Step 4: Simplify right side
    30,068.58x = 605,545,545.59
  5. Step 5: Solve for x
    x = 605,545,545.59/30,068.58
  6. Step 6: Final answer
    x = 20,138.81

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.