Home / 30,101.13-45,160.61-10,381.68

Finding the Fourth Proportional to 30,101.13, 45,160.61 and 10,381.68

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Solution

The fourth proportional to 30,101.13, 45,160.61 and 10,381.68 is: 15,575.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,101.13 : 45,160.61 = 10,381.68 : x
  2. Step 2: Convert to fraction form
    30,101.13/45,160.61 = 10,381.68/x
  3. Step 3: Cross multiply
    30,101.13x = 45,160.61 × 10,381.68
  4. Step 4: Simplify right side
    30,101.13x = 468,842,949.72
  5. Step 5: Solve for x
    x = 468,842,949.72/30,101.13
  6. Step 6: Final answer
    x = 15,575.59

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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.