Home / 31,697.12-43,742.70-17,357.56

Finding the Fourth Proportional to 31,697.12, 43,742.70 and 17,357.56

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Solution

The fourth proportional to 31,697.12, 43,742.70 and 17,357.56 is: 23,953.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,697.12 : 43,742.70 = 17,357.56 : x
  2. Step 2: Convert to fraction form
    31,697.12/43,742.70 = 17,357.56/x
  3. Step 3: Cross multiply
    31,697.12x = 43,742.70 × 17,357.56
  4. Step 4: Simplify right side
    31,697.12x = 759,266,430.46
  5. Step 5: Solve for x
    x = 759,266,430.46/31,697.12
  6. Step 6: Final answer
    x = 23,953.80

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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.