Home / 30,330.81-45,493.97-11,612.52

Finding the Fourth Proportional to 30,330.81, 45,493.97 and 11,612.52

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Solution

The fourth proportional to 30,330.81, 45,493.97 and 11,612.52 is: 17,417.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,330.81 : 45,493.97 = 11,612.52 : x
  2. Step 2: Convert to fraction form
    30,330.81/45,493.97 = 11,612.52/x
  3. Step 3: Cross multiply
    30,330.81x = 45,493.97 × 11,612.52
  4. Step 4: Simplify right side
    30,330.81x = 528,299,578.44
  5. Step 5: Solve for x
    x = 528,299,578.44/30,330.81
  6. Step 6: Final answer
    x = 17,417.92

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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.