Home / 31,213.80-43,072.29-17,784.54

Finding the Fourth Proportional to 31,213.80, 43,072.29 and 17,784.54

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Solution

The fourth proportional to 31,213.80, 43,072.29 and 17,784.54 is: 24,541.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,213.80 : 43,072.29 = 17,784.54 : x
  2. Step 2: Convert to fraction form
    31,213.80/43,072.29 = 17,784.54/x
  3. Step 3: Cross multiply
    31,213.80x = 43,072.29 × 17,784.54
  4. Step 4: Simplify right side
    31,213.80x = 766,020,864.40
  5. Step 5: Solve for x
    x = 766,020,864.40/31,213.80
  6. Step 6: Final answer
    x = 24,541.10

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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.