Home / 30,301.05-45,451.52-13,641.62

Finding the Fourth Proportional to 30,301.05, 45,451.52 and 13,641.62

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Solution

The fourth proportional to 30,301.05, 45,451.52 and 13,641.62 is: 20,462.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,301.05 : 45,451.52 = 13,641.62 : x
  2. Step 2: Convert to fraction form
    30,301.05/45,451.52 = 13,641.62/x
  3. Step 3: Cross multiply
    30,301.05x = 45,451.52 × 13,641.62
  4. Step 4: Simplify right side
    30,301.05x = 620,032,100.77
  5. Step 5: Solve for x
    x = 620,032,100.77/30,301.05
  6. Step 6: Final answer
    x = 20,462.40

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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.