Home / 28,246.36-38,981.46-15,671.56

Finding the Fourth Proportional to 28,246.36, 38,981.46 and 15,671.56

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Solution

The fourth proportional to 28,246.36, 38,981.46 and 15,671.56 is: 21,627.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,246.36 : 38,981.46 = 15,671.56 : x
  2. Step 2: Convert to fraction form
    28,246.36/38,981.46 = 15,671.56/x
  3. Step 3: Cross multiply
    28,246.36x = 38,981.46 × 15,671.56
  4. Step 4: Simplify right side
    28,246.36x = 610,900,289.28
  5. Step 5: Solve for x
    x = 610,900,289.28/28,246.36
  6. Step 6: Final answer
    x = 21,627.58

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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.