Home / 39,134.21-58,649.40-21,319.17

Finding the Fourth Proportional to 39,134.21, 58,649.40 and 21,319.17

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Solution

The fourth proportional to 39,134.21, 58,649.40 and 21,319.17 is: 31,950.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,134.21 : 58,649.40 = 21,319.17 : x
  2. Step 2: Convert to fraction form
    39,134.21/58,649.40 = 21,319.17/x
  3. Step 3: Cross multiply
    39,134.21x = 58,649.40 × 21,319.17
  4. Step 4: Simplify right side
    39,134.21x = 1,250,356,309.06
  5. Step 5: Solve for x
    x = 1,250,356,309.06/39,134.21
  6. Step 6: Final answer
    x = 31,950.47

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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.