Home / 25,880.05-35,710.90-15,122.34

Finding the Fourth Proportional to 25,880.05, 35,710.90 and 15,122.34

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Solution

The fourth proportional to 25,880.05, 35,710.90 and 15,122.34 is: 20,866.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,880.05 : 35,710.90 = 15,122.34 : x
  2. Step 2: Convert to fraction form
    25,880.05/35,710.90 = 15,122.34/x
  3. Step 3: Cross multiply
    25,880.05x = 35,710.90 × 15,122.34
  4. Step 4: Simplify right side
    25,880.05x = 540,032,333.70
  5. Step 5: Solve for x
    x = 540,032,333.70/25,880.05
  6. Step 6: Final answer
    x = 20,866.74

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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.