Home / 25,640.49-35,331.33-18,915.45

Finding the Fourth Proportional to 25,640.49, 35,331.33 and 18,915.45

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Solution

The fourth proportional to 25,640.49, 35,331.33 and 18,915.45 is: 26,064.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,640.49 : 35,331.33 = 18,915.45 : x
  2. Step 2: Convert to fraction form
    25,640.49/35,331.33 = 18,915.45/x
  3. Step 3: Cross multiply
    25,640.49x = 35,331.33 × 18,915.45
  4. Step 4: Simplify right side
    25,640.49x = 668,308,006.05
  5. Step 5: Solve for x
    x = 668,308,006.05/25,640.49
  6. Step 6: Final answer
    x = 26,064.56

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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.