Home / 30,166.05-45,254.48-12,637.65

Finding the Fourth Proportional to 30,166.05, 45,254.48 and 12,637.65

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Solution

The fourth proportional to 30,166.05, 45,254.48 and 12,637.65 is: 18,958.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,166.05 : 45,254.48 = 12,637.65 : x
  2. Step 2: Convert to fraction form
    30,166.05/45,254.48 = 12,637.65/x
  3. Step 3: Cross multiply
    30,166.05x = 45,254.48 × 12,637.65
  4. Step 4: Simplify right side
    30,166.05x = 571,910,215.98
  5. Step 5: Solve for x
    x = 571,910,215.98/30,166.05
  6. Step 6: Final answer
    x = 18,958.74

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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.