Home / 31,028.99-42,820.20-16,881.94

Finding the Fourth Proportional to 31,028.99, 42,820.20 and 16,881.94

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Solution

The fourth proportional to 31,028.99, 42,820.20 and 16,881.94 is: 23,297.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,028.99 : 42,820.20 = 16,881.94 : x
  2. Step 2: Convert to fraction form
    31,028.99/42,820.20 = 16,881.94/x
  3. Step 3: Cross multiply
    31,028.99x = 42,820.20 × 16,881.94
  4. Step 4: Simplify right side
    31,028.99x = 722,887,748.68
  5. Step 5: Solve for x
    x = 722,887,748.68/31,028.99
  6. Step 6: Final answer
    x = 23,297.17

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.