Home / 30,109.36-45,169.68-13,470.08

Finding the Fourth Proportional to 30,109.36, 45,169.68 and 13,470.08

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Solution

The fourth proportional to 30,109.36, 45,169.68 and 13,470.08 is: 20,207.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,109.36 : 45,169.68 = 13,470.08 : x
  2. Step 2: Convert to fraction form
    30,109.36/45,169.68 = 13,470.08/x
  3. Step 3: Cross multiply
    30,109.36x = 45,169.68 × 13,470.08
  4. Step 4: Simplify right side
    30,109.36x = 608,439,203.17
  5. Step 5: Solve for x
    x = 608,439,203.17/30,109.36
  6. Step 6: Final answer
    x = 20,207.64

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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.