Home / 28,481.20-42,606.60-25,716.40

Finding the Fourth Proportional to 28,481.20, 42,606.60 and 25,716.40

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Solution

The fourth proportional to 28,481.20, 42,606.60 and 25,716.40 is: 38,470.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,481.20 : 42,606.60 = 25,716.40 : x
  2. Step 2: Convert to fraction form
    28,481.20/42,606.60 = 25,716.40/x
  3. Step 3: Cross multiply
    28,481.20x = 42,606.60 × 25,716.40
  4. Step 4: Simplify right side
    28,481.20x = 1,095,688,368.24
  5. Step 5: Solve for x
    x = 1,095,688,368.24/28,481.20
  6. Step 6: Final answer
    x = 38,470.58

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1.5x scale

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.