Home / 31,768.47-43,845.03-18,337.05

Finding the Fourth Proportional to 31,768.47, 43,845.03 and 18,337.05

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Solution

The fourth proportional to 31,768.47, 43,845.03 and 18,337.05 is: 25,307.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,768.47 : 43,845.03 = 18,337.05 : x
  2. Step 2: Convert to fraction form
    31,768.47/43,845.03 = 18,337.05/x
  3. Step 3: Cross multiply
    31,768.47x = 43,845.03 × 18,337.05
  4. Step 4: Simplify right side
    31,768.47x = 803,988,507.36
  5. Step 5: Solve for x
    x = 803,988,507.36/31,768.47
  6. Step 6: Final answer
    x = 25,307.75

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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.