Home / 28,728.83-43,106.29-12,925.19

Finding the Fourth Proportional to 28,728.83, 43,106.29 and 12,925.19

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Solution

The fourth proportional to 28,728.83, 43,106.29 and 12,925.19 is: 19,393.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,728.83 : 43,106.29 = 12,925.19 : x
  2. Step 2: Convert to fraction form
    28,728.83/43,106.29 = 12,925.19/x
  3. Step 3: Cross multiply
    28,728.83x = 43,106.29 × 12,925.19
  4. Step 4: Simplify right side
    28,728.83x = 557,156,740.60
  5. Step 5: Solve for x
    x = 557,156,740.60/28,728.83
  6. Step 6: Final answer
    x = 19,393.65

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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.