Home / 31,258.20-43,124.70-19,925.10

Finding the Fourth Proportional to 31,258.20, 43,124.70 and 19,925.10

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Solution

The fourth proportional to 31,258.20, 43,124.70 and 19,925.10 is: 27,489.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,258.20 : 43,124.70 = 19,925.10 : x
  2. Step 2: Convert to fraction form
    31,258.20/43,124.70 = 19,925.10/x
  3. Step 3: Cross multiply
    31,258.20x = 43,124.70 × 19,925.10
  4. Step 4: Simplify right side
    31,258.20x = 859,263,959.97
  5. Step 5: Solve for x
    x = 859,263,959.97/31,258.20
  6. Step 6: Final answer
    x = 27,489.23

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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.