Home / 30,492.33-45,705.69-19,929.12

Finding the Fourth Proportional to 30,492.33, 45,705.69 and 19,929.12

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Solution

The fourth proportional to 30,492.33, 45,705.69 and 19,929.12 is: 29,872.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,492.33 : 45,705.69 = 19,929.12 : x
  2. Step 2: Convert to fraction form
    30,492.33/45,705.69 = 19,929.12/x
  3. Step 3: Cross multiply
    30,492.33x = 45,705.69 × 19,929.12
  4. Step 4: Simplify right side
    30,492.33x = 910,874,180.69
  5. Step 5: Solve for x
    x = 910,874,180.69/30,492.33
  6. Step 6: Final answer
    x = 29,872.24

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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.