Home / 31,457.76-43,410.06-17,307.90

Finding the Fourth Proportional to 31,457.76, 43,410.06 and 17,307.90

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Solution

The fourth proportional to 31,457.76, 43,410.06 and 17,307.90 is: 23,883.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,457.76 : 43,410.06 = 17,307.90 : x
  2. Step 2: Convert to fraction form
    31,457.76/43,410.06 = 17,307.90/x
  3. Step 3: Cross multiply
    31,457.76x = 43,410.06 × 17,307.90
  4. Step 4: Simplify right side
    31,457.76x = 751,336,977.47
  5. Step 5: Solve for x
    x = 751,336,977.47/31,457.76
  6. Step 6: Final answer
    x = 23,883.99

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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.