Home / 52,880.43-79,285.15-20,830.20

Finding the Fourth Proportional to 52,880.43, 79,285.15 and 20,830.20

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Solution

The fourth proportional to 52,880.43, 79,285.15 and 20,830.20 is: 31,231.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,880.43 : 79,285.15 = 20,830.20 : x
  2. Step 2: Convert to fraction form
    52,880.43/79,285.15 = 20,830.20/x
  3. Step 3: Cross multiply
    52,880.43x = 79,285.15 × 20,830.20
  4. Step 4: Simplify right side
    52,880.43x = 1,651,525,531.53
  5. Step 5: Solve for x
    x = 1,651,525,531.53/52,880.43
  6. Step 6: Final answer
    x = 31,231.32

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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.