Home / 30,287.28-45,401.76-19,160.04

Finding the Fourth Proportional to 30,287.28, 45,401.76 and 19,160.04

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Solution

The fourth proportional to 30,287.28, 45,401.76 and 19,160.04 is: 28,721.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,287.28 : 45,401.76 = 19,160.04 : x
  2. Step 2: Convert to fraction form
    30,287.28/45,401.76 = 19,160.04/x
  3. Step 3: Cross multiply
    30,287.28x = 45,401.76 × 19,160.04
  4. Step 4: Simplify right side
    30,287.28x = 869,899,537.67
  5. Step 5: Solve for x
    x = 869,899,537.67/30,287.28
  6. Step 6: Final answer
    x = 28,721.61

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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.