Home / 30,827.28-46,239.48-21,439.56

Finding the Fourth Proportional to 30,827.28, 46,239.48 and 21,439.56

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Solution

The fourth proportional to 30,827.28, 46,239.48 and 21,439.56 is: 32,158.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,827.28 : 46,239.48 = 21,439.56 : x
  2. Step 2: Convert to fraction form
    30,827.28/46,239.48 = 21,439.56/x
  3. Step 3: Cross multiply
    30,827.28x = 46,239.48 × 21,439.56
  4. Step 4: Simplify right side
    30,827.28x = 991,354,105.83
  5. Step 5: Solve for x
    x = 991,354,105.83/30,827.28
  6. Step 6: Final answer
    x = 32,158.34

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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.