Home / 35,765.04-53,646.72-12,391.20

Finding the Fourth Proportional to 35,765.04, 53,646.72 and 12,391.20

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Solution

The fourth proportional to 35,765.04, 53,646.72 and 12,391.20 is: 18,586.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,765.04 : 53,646.72 = 12,391.20 : x
  2. Step 2: Convert to fraction form
    35,765.04/53,646.72 = 12,391.20/x
  3. Step 3: Cross multiply
    35,765.04x = 53,646.72 × 12,391.20
  4. Step 4: Simplify right side
    35,765.04x = 664,747,236.86
  5. Step 5: Solve for x
    x = 664,747,236.86/35,765.04
  6. Step 6: Final answer
    x = 18,586.51

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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.