Home / 38,907.11-58,368.86-12,609.80

Finding the Fourth Proportional to 38,907.11, 58,368.86 and 12,609.80

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Solution

The fourth proportional to 38,907.11, 58,368.86 and 12,609.80 is: 18,917.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,907.11 : 58,368.86 = 12,609.80 : x
  2. Step 2: Convert to fraction form
    38,907.11/58,368.86 = 12,609.80/x
  3. Step 3: Cross multiply
    38,907.11x = 58,368.86 × 12,609.80
  4. Step 4: Simplify right side
    38,907.11x = 736,019,562.10
  5. Step 5: Solve for x
    x = 736,019,562.10/38,907.11
  6. Step 6: Final answer
    x = 18,917.36

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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.