Home / 28,712.39-43,068.59-8,992.49

Finding the Fourth Proportional to 28,712.39, 43,068.59 and 8,992.49

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Solution

The fourth proportional to 28,712.39, 43,068.59 and 8,992.49 is: 13,488.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,712.39 : 43,068.59 = 8,992.49 : x
  2. Step 2: Convert to fraction form
    28,712.39/43,068.59 = 8,992.49/x
  3. Step 3: Cross multiply
    28,712.39x = 43,068.59 × 8,992.49
  4. Step 4: Simplify right side
    28,712.39x = 387,293,961.32
  5. Step 5: Solve for x
    x = 387,293,961.32/28,712.39
  6. Step 6: Final answer
    x = 13,488.74

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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.