Home / 25,905.20-38,838.60-17,564.40

Finding the Fourth Proportional to 25,905.20, 38,838.60 and 17,564.40

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Solution

The fourth proportional to 25,905.20, 38,838.60 and 17,564.40 is: 26,333.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,905.20 : 38,838.60 = 17,564.40 : x
  2. Step 2: Convert to fraction form
    25,905.20/38,838.60 = 17,564.40/x
  3. Step 3: Cross multiply
    25,905.20x = 38,838.60 × 17,564.40
  4. Step 4: Simplify right side
    25,905.20x = 682,176,705.84
  5. Step 5: Solve for x
    x = 682,176,705.84/25,905.20
  6. Step 6: Final answer
    x = 26,333.58

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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.