Home / 30,720.66-46,042.65-13,170.12

Finding the Fourth Proportional to 30,720.66, 46,042.65 and 13,170.12

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Solution

The fourth proportional to 30,720.66, 46,042.65 and 13,170.12 is: 19,738.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,720.66 : 46,042.65 = 13,170.12 : x
  2. Step 2: Convert to fraction form
    30,720.66/46,042.65 = 13,170.12/x
  3. Step 3: Cross multiply
    30,720.66x = 46,042.65 × 13,170.12
  4. Step 4: Simplify right side
    30,720.66x = 606,387,225.62
  5. Step 5: Solve for x
    x = 606,387,225.62/30,720.66
  6. Step 6: Final answer
    x = 19,738.74

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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.