Home / 30,115.86-45,180.96-10,394.59

Finding the Fourth Proportional to 30,115.86, 45,180.96 and 10,394.59

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Solution

The fourth proportional to 30,115.86, 45,180.96 and 10,394.59 is: 15,594.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,115.86 : 45,180.96 = 10,394.59 : x
  2. Step 2: Convert to fraction form
    30,115.86/45,180.96 = 10,394.59/x
  3. Step 3: Cross multiply
    30,115.86x = 45,180.96 × 10,394.59
  4. Step 4: Simplify right side
    30,115.86x = 469,637,329.10
  5. Step 5: Solve for x
    x = 469,637,329.10/30,115.86
  6. Step 6: Final answer
    x = 15,594.35

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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.