Home / 28,495.78-39,334.70-17,165.76

Finding the Fourth Proportional to 28,495.78, 39,334.70 and 17,165.76

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Solution

The fourth proportional to 28,495.78, 39,334.70 and 17,165.76 is: 23,695.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,495.78 : 39,334.70 = 17,165.76 : x
  2. Step 2: Convert to fraction form
    28,495.78/39,334.70 = 17,165.76/x
  3. Step 3: Cross multiply
    28,495.78x = 39,334.70 × 17,165.76
  4. Step 4: Simplify right side
    28,495.78x = 675,210,019.87
  5. Step 5: Solve for x
    x = 675,210,019.87/28,495.78
  6. Step 6: Final answer
    x = 23,695.09

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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.