Home / 19,478.32-29,208.82-12,082.48

Finding the Fourth Proportional to 19,478.32, 29,208.82 and 12,082.48

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Solution

The fourth proportional to 19,478.32, 29,208.82 and 12,082.48 is: 18,118.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,478.32 : 29,208.82 = 12,082.48 : x
  2. Step 2: Convert to fraction form
    19,478.32/29,208.82 = 12,082.48/x
  3. Step 3: Cross multiply
    19,478.32x = 29,208.82 × 12,082.48
  4. Step 4: Simplify right side
    19,478.32x = 352,914,983.47
  5. Step 5: Solve for x
    x = 352,914,983.47/19,478.32
  6. Step 6: Final answer
    x = 18,118.35

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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.