Home / 28,607.90-42,910.68-11,963.66

Finding the Fourth Proportional to 28,607.90, 42,910.68 and 11,963.66

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Solution

The fourth proportional to 28,607.90, 42,910.68 and 11,963.66 is: 17,945.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,607.90 : 42,910.68 = 11,963.66 : x
  2. Step 2: Convert to fraction form
    28,607.90/42,910.68 = 11,963.66/x
  3. Step 3: Cross multiply
    28,607.90x = 42,910.68 × 11,963.66
  4. Step 4: Simplify right side
    28,607.90x = 513,368,785.89
  5. Step 5: Solve for x
    x = 513,368,785.89/28,607.90
  6. Step 6: Final answer
    x = 17,945.00

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.