Home / 31,439.36-43,386.56-17,292.72

Finding the Fourth Proportional to 31,439.36, 43,386.56 and 17,292.72

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Solution

The fourth proportional to 31,439.36, 43,386.56 and 17,292.72 is: 23,864.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,439.36 : 43,386.56 = 17,292.72 : x
  2. Step 2: Convert to fraction form
    31,439.36/43,386.56 = 17,292.72/x
  3. Step 3: Cross multiply
    31,439.36x = 43,386.56 × 17,292.72
  4. Step 4: Simplify right side
    31,439.36x = 750,271,633.84
  5. Step 5: Solve for x
    x = 750,271,633.84/31,439.36
  6. Step 6: Final answer
    x = 23,864.09

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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.