Home / 30,042.08-45,064.79-13,403.25

Finding the Fourth Proportional to 30,042.08, 45,064.79 and 13,403.25

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Solution

The fourth proportional to 30,042.08, 45,064.79 and 13,403.25 is: 20,105.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,042.08 : 45,064.79 = 13,403.25 : x
  2. Step 2: Convert to fraction form
    30,042.08/45,064.79 = 13,403.25/x
  3. Step 3: Cross multiply
    30,042.08x = 45,064.79 × 13,403.25
  4. Step 4: Simplify right side
    30,042.08x = 604,014,579.55
  5. Step 5: Solve for x
    x = 604,014,579.55/30,042.08
  6. Step 6: Final answer
    x = 20,105.62

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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.