Home / 20,915.94-28,849.42-17,750.32

Finding the Fourth Proportional to 20,915.94, 28,849.42 and 17,750.32

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Solution

The fourth proportional to 20,915.94, 28,849.42 and 17,750.32 is: 24,483.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,915.94 : 28,849.42 = 17,750.32 : x
  2. Step 2: Convert to fraction form
    20,915.94/28,849.42 = 17,750.32/x
  3. Step 3: Cross multiply
    20,915.94x = 28,849.42 × 17,750.32
  4. Step 4: Simplify right side
    20,915.94x = 512,086,436.81
  5. Step 5: Solve for x
    x = 512,086,436.81/20,915.94
  6. Step 6: Final answer
    x = 24,483.07

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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.