Home / 30,155.61-41,576.49-21,552.06

Finding the Fourth Proportional to 30,155.61, 41,576.49 and 21,552.06

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Solution

The fourth proportional to 30,155.61, 41,576.49 and 21,552.06 is: 29,714.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,155.61 : 41,576.49 = 21,552.06 : x
  2. Step 2: Convert to fraction form
    30,155.61/41,576.49 = 21,552.06/x
  3. Step 3: Cross multiply
    30,155.61x = 41,576.49 × 21,552.06
  4. Step 4: Simplify right side
    30,155.61x = 896,059,007.07
  5. Step 5: Solve for x
    x = 896,059,007.07/30,155.61
  6. Step 6: Final answer
    x = 29,714.50

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.