Home / 30,898.63-42,640.11-16,751.51

Finding the Fourth Proportional to 30,898.63, 42,640.11 and 16,751.51

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Solution

The fourth proportional to 30,898.63, 42,640.11 and 16,751.51 is: 23,117.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,898.63 : 42,640.11 = 16,751.51 : x
  2. Step 2: Convert to fraction form
    30,898.63/42,640.11 = 16,751.51/x
  3. Step 3: Cross multiply
    30,898.63x = 42,640.11 × 16,751.51
  4. Step 4: Simplify right side
    30,898.63x = 714,285,932.11
  5. Step 5: Solve for x
    x = 714,285,932.11/30,898.63
  6. Step 6: Final answer
    x = 23,117.08

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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.