Home / 31,339.47-43,224.03-19,409.43

Finding the Fourth Proportional to 31,339.47, 43,224.03 and 19,409.43

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Solution

The fourth proportional to 31,339.47, 43,224.03 and 19,409.43 is: 26,769.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,339.47 : 43,224.03 = 19,409.43 : x
  2. Step 2: Convert to fraction form
    31,339.47/43,224.03 = 19,409.43/x
  3. Step 3: Cross multiply
    31,339.47x = 43,224.03 × 19,409.43
  4. Step 4: Simplify right side
    31,339.47x = 838,953,784.60
  5. Step 5: Solve for x
    x = 838,953,784.60/31,339.47
  6. Step 6: Final answer
    x = 26,769.88

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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.