Home / 30,395.07-45,505.53-19,876.86

Finding the Fourth Proportional to 30,395.07, 45,505.53 and 19,876.86

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Solution

The fourth proportional to 30,395.07, 45,505.53 and 19,876.86 is: 29,758.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,395.07 : 45,505.53 = 19,876.86 : x
  2. Step 2: Convert to fraction form
    30,395.07/45,505.53 = 19,876.86/x
  3. Step 3: Cross multiply
    30,395.07x = 45,505.53 × 19,876.86
  4. Step 4: Simplify right side
    30,395.07x = 904,507,049.04
  5. Step 5: Solve for x
    x = 904,507,049.04/30,395.07
  6. Step 6: Final answer
    x = 29,758.35

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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.