Home / 30,155.49-45,233.24-10,423.28

Finding the Fourth Proportional to 30,155.49, 45,233.24 and 10,423.28

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Solution

The fourth proportional to 30,155.49, 45,233.24 and 10,423.28 is: 15,634.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,155.49 : 45,233.24 = 10,423.28 : x
  2. Step 2: Convert to fraction form
    30,155.49/45,233.24 = 10,423.28/x
  3. Step 3: Cross multiply
    30,155.49x = 45,233.24 × 10,423.28
  4. Step 4: Simplify right side
    30,155.49x = 471,478,786.79
  5. Step 5: Solve for x
    x = 471,478,786.79/30,155.49
  6. Step 6: Final answer
    x = 15,634.92

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Similar ratio
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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.