Home / 28,930.07-39,940.91-18,875.94

Finding the Fourth Proportional to 28,930.07, 39,940.91 and 18,875.94

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Solution

The fourth proportional to 28,930.07, 39,940.91 and 18,875.94 is: 26,060.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,930.07 : 39,940.91 = 18,875.94 : x
  2. Step 2: Convert to fraction form
    28,930.07/39,940.91 = 18,875.94/x
  3. Step 3: Cross multiply
    28,930.07x = 39,940.91 × 18,875.94
  4. Step 4: Simplify right side
    28,930.07x = 753,922,126.33
  5. Step 5: Solve for x
    x = 753,922,126.33/28,930.07
  6. Step 6: Final answer
    x = 26,060.16

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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.