Home / 28,345.38-42,480.81-11,696.15

Finding the Fourth Proportional to 28,345.38, 42,480.81 and 11,696.15

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Solution

The fourth proportional to 28,345.38, 42,480.81 and 11,696.15 is: 17,528.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,345.38 : 42,480.81 = 11,696.15 : x
  2. Step 2: Convert to fraction form
    28,345.38/42,480.81 = 11,696.15/x
  3. Step 3: Cross multiply
    28,345.38x = 42,480.81 × 11,696.15
  4. Step 4: Simplify right side
    28,345.38x = 496,862,032.08
  5. Step 5: Solve for x
    x = 496,862,032.08/28,345.38
  6. Step 6: Final answer
    x = 17,528.85

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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.