Home / 38,455.13-57,682.35-12,159.89

Finding the Fourth Proportional to 38,455.13, 57,682.35 and 12,159.89

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Solution

The fourth proportional to 38,455.13, 57,682.35 and 12,159.89 is: 18,239.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,455.13 : 57,682.35 = 12,159.89 : x
  2. Step 2: Convert to fraction form
    38,455.13/57,682.35 = 12,159.89/x
  3. Step 3: Cross multiply
    38,455.13x = 57,682.35 × 12,159.89
  4. Step 4: Simplify right side
    38,455.13x = 701,411,030.94
  5. Step 5: Solve for x
    x = 701,411,030.94/38,455.13
  6. Step 6: Final answer
    x = 18,239.73

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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.