Home / 35,445.43-48,915.80-20,340.85

Finding the Fourth Proportional to 35,445.43, 48,915.80 and 20,340.85

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Solution

The fourth proportional to 35,445.43, 48,915.80 and 20,340.85 is: 28,071.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,445.43 : 48,915.80 = 20,340.85 : x
  2. Step 2: Convert to fraction form
    35,445.43/48,915.80 = 20,340.85/x
  3. Step 3: Cross multiply
    35,445.43x = 48,915.80 × 20,340.85
  4. Step 4: Simplify right side
    35,445.43x = 994,989,016.72
  5. Step 5: Solve for x
    x = 994,989,016.72/35,445.43
  6. Step 6: Final answer
    x = 28,071.01

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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.