Home / 31,439.60-43,386.64-17,293.36

Finding the Fourth Proportional to 31,439.60, 43,386.64 and 17,293.36

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Solution

The fourth proportional to 31,439.60, 43,386.64 and 17,293.36 is: 23,864.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,439.60 : 43,386.64 = 17,293.36 : x
  2. Step 2: Convert to fraction form
    31,439.60/43,386.64 = 17,293.36/x
  3. Step 3: Cross multiply
    31,439.60x = 43,386.64 × 17,293.36
  4. Step 4: Simplify right side
    31,439.60x = 750,300,784.71
  5. Step 5: Solve for x
    x = 750,300,784.71/31,439.60
  6. Step 6: Final answer
    x = 23,864.83

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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.