Home / 38,258.28-57,352.86-13,628.52

Finding the Fourth Proportional to 38,258.28, 57,352.86 and 13,628.52

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Solution

The fourth proportional to 38,258.28, 57,352.86 and 13,628.52 is: 20,430.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,258.28 : 57,352.86 = 13,628.52 : x
  2. Step 2: Convert to fraction form
    38,258.28/57,352.86 = 13,628.52/x
  3. Step 3: Cross multiply
    38,258.28x = 57,352.86 × 13,628.52
  4. Step 4: Simplify right side
    38,258.28x = 781,634,599.57
  5. Step 5: Solve for x
    x = 781,634,599.57/38,258.28
  6. Step 6: Final answer
    x = 20,430.47

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.