Home / 39,170.07-58,742.64-12,868.74

Finding the Fourth Proportional to 39,170.07, 58,742.64 and 12,868.74

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Solution

The fourth proportional to 39,170.07, 58,742.64 and 12,868.74 is: 19,299.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,170.07 : 58,742.64 = 12,868.74 : x
  2. Step 2: Convert to fraction form
    39,170.07/58,742.64 = 12,868.74/x
  3. Step 3: Cross multiply
    39,170.07x = 58,742.64 × 12,868.74
  4. Step 4: Simplify right side
    39,170.07x = 755,943,761.07
  5. Step 5: Solve for x
    x = 755,943,761.07/39,170.07
  6. Step 6: Final answer
    x = 19,299.01

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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.