Home / 30,119.86-45,180.15-14,326.57

Finding the Fourth Proportional to 30,119.86, 45,180.15 and 14,326.57

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Solution

The fourth proportional to 30,119.86, 45,180.15 and 14,326.57 is: 21,490.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,119.86 : 45,180.15 = 14,326.57 : x
  2. Step 2: Convert to fraction form
    30,119.86/45,180.15 = 14,326.57/x
  3. Step 3: Cross multiply
    30,119.86x = 45,180.15 × 14,326.57
  4. Step 4: Simplify right side
    30,119.86x = 647,276,581.59
  5. Step 5: Solve for x
    x = 647,276,581.59/30,119.86
  6. Step 6: Final answer
    x = 21,490.03

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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.