Home / 34,977.78-48,281.88-20,830.32

Finding the Fourth Proportional to 34,977.78, 48,281.88 and 20,830.32

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Solution

The fourth proportional to 34,977.78, 48,281.88 and 20,830.32 is: 28,753.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,977.78 : 48,281.88 = 20,830.32 : x
  2. Step 2: Convert to fraction form
    34,977.78/48,281.88 = 20,830.32/x
  3. Step 3: Cross multiply
    34,977.78x = 48,281.88 × 20,830.32
  4. Step 4: Simplify right side
    34,977.78x = 1,005,727,010.60
  5. Step 5: Solve for x
    x = 1,005,727,010.60/34,977.78
  6. Step 6: Final answer
    x = 28,753.31

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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.