Home / 31,386.23-43,313.03-17,239.99

Finding the Fourth Proportional to 31,386.23, 43,313.03 and 17,239.99

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Solution

The fourth proportional to 31,386.23, 43,313.03 and 17,239.99 is: 23,791.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,386.23 : 43,313.03 = 17,239.99 : x
  2. Step 2: Convert to fraction form
    31,386.23/43,313.03 = 17,239.99/x
  3. Step 3: Cross multiply
    31,386.23x = 43,313.03 × 17,239.99
  4. Step 4: Simplify right side
    31,386.23x = 746,716,155.45
  5. Step 5: Solve for x
    x = 746,716,155.45/31,386.23
  6. Step 6: Final answer
    x = 23,791.20

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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.