Home / 43,851.60-65,787.21-20,465.28

Finding the Fourth Proportional to 43,851.60, 65,787.21 and 20,465.28

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Solution

The fourth proportional to 43,851.60, 65,787.21 and 20,465.28 is: 30,702.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,851.60 : 65,787.21 = 20,465.28 : x
  2. Step 2: Convert to fraction form
    43,851.60/65,787.21 = 20,465.28/x
  3. Step 3: Cross multiply
    43,851.60x = 65,787.21 × 20,465.28
  4. Step 4: Simplify right side
    43,851.60x = 1,346,353,673.07
  5. Step 5: Solve for x
    x = 1,346,353,673.07/43,851.60
  6. Step 6: Final answer
    x = 30,702.50

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1.5x scale

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.