Home / 31,430.13-43,374.24-17,090.70

Finding the Fourth Proportional to 31,430.13, 43,374.24 and 17,090.70

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Solution

The fourth proportional to 31,430.13, 43,374.24 and 17,090.70 is: 23,585.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,430.13 : 43,374.24 = 17,090.70 : x
  2. Step 2: Convert to fraction form
    31,430.13/43,374.24 = 17,090.70/x
  3. Step 3: Cross multiply
    31,430.13x = 43,374.24 × 17,090.70
  4. Step 4: Simplify right side
    31,430.13x = 741,296,123.57
  5. Step 5: Solve for x
    x = 741,296,123.57/31,430.13
  6. Step 6: Final answer
    x = 23,585.53

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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.