Home / 25,878.20-38,807.70-10,292.60

Finding the Fourth Proportional to 25,878.20, 38,807.70 and 10,292.60

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Solution

The fourth proportional to 25,878.20, 38,807.70 and 10,292.60 is: 15,435.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,878.20 : 38,807.70 = 10,292.60 : x
  2. Step 2: Convert to fraction form
    25,878.20/38,807.70 = 10,292.60/x
  3. Step 3: Cross multiply
    25,878.20x = 38,807.70 × 10,292.60
  4. Step 4: Simplify right side
    25,878.20x = 399,432,133.02
  5. Step 5: Solve for x
    x = 399,432,133.02/25,878.20
  6. Step 6: Final answer
    x = 15,435.08

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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.