Home / 30,213.25-45,320.36-9,153.51

Finding the Fourth Proportional to 30,213.25, 45,320.36 and 9,153.51

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Solution

The fourth proportional to 30,213.25, 45,320.36 and 9,153.51 is: 13,730.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,213.25 : 45,320.36 = 9,153.51 : x
  2. Step 2: Convert to fraction form
    30,213.25/45,320.36 = 9,153.51/x
  3. Step 3: Cross multiply
    30,213.25x = 45,320.36 × 9,153.51
  4. Step 4: Simplify right side
    30,213.25x = 414,840,204.23
  5. Step 5: Solve for x
    x = 414,840,204.23/30,213.25
  6. Step 6: Final answer
    x = 13,730.41

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Double scale
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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.