Home / 38,420.80-57,631.20-35,569.60

Finding the Fourth Proportional to 38,420.80, 57,631.20 and 35,569.60

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Solution

The fourth proportional to 38,420.80, 57,631.20 and 35,569.60 is: 53,354.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,420.80 : 57,631.20 = 35,569.60 : x
  2. Step 2: Convert to fraction form
    38,420.80/57,631.20 = 35,569.60/x
  3. Step 3: Cross multiply
    38,420.80x = 57,631.20 × 35,569.60
  4. Step 4: Simplify right side
    38,420.80x = 2,049,918,731.52
  5. Step 5: Solve for x
    x = 2,049,918,731.52/38,420.80
  6. Step 6: Final answer
    x = 53,354.40

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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.