Home / 31,356.39-43,292.09-19,432.38

Finding the Fourth Proportional to 31,356.39, 43,292.09 and 19,432.38

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Solution

The fourth proportional to 31,356.39, 43,292.09 and 19,432.38 is: 26,829.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,356.39 : 43,292.09 = 19,432.38 : x
  2. Step 2: Convert to fraction form
    31,356.39/43,292.09 = 19,432.38/x
  3. Step 3: Cross multiply
    31,356.39x = 43,292.09 × 19,432.38
  4. Step 4: Simplify right side
    31,356.39x = 841,268,343.87
  5. Step 5: Solve for x
    x = 841,268,343.87/31,356.39
  6. Step 6: Final answer
    x = 26,829.25

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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.