Home / 22,845.65-31,533.70-13,287.78

Finding the Fourth Proportional to 22,845.65, 31,533.70 and 13,287.78

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Solution

The fourth proportional to 22,845.65, 31,533.70 and 13,287.78 is: 18,341.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,845.65 : 31,533.70 = 13,287.78 : x
  2. Step 2: Convert to fraction form
    22,845.65/31,533.70 = 13,287.78/x
  3. Step 3: Cross multiply
    22,845.65x = 31,533.70 × 13,287.78
  4. Step 4: Simplify right side
    22,845.65x = 419,013,003.05
  5. Step 5: Solve for x
    x = 419,013,003.05/22,845.65
  6. Step 6: Final answer
    x = 18,341.04

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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.