Home / 28,712.49-43,068.73-8,992.59

Finding the Fourth Proportional to 28,712.49, 43,068.73 and 8,992.59

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Solution

The fourth proportional to 28,712.49, 43,068.73 and 8,992.59 is: 13,488.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,712.49 : 43,068.73 = 8,992.59 : x
  2. Step 2: Convert to fraction form
    28,712.49/43,068.73 = 8,992.59/x
  3. Step 3: Cross multiply
    28,712.49x = 43,068.73 × 8,992.59
  4. Step 4: Simplify right side
    28,712.49x = 387,299,263.58
  5. Step 5: Solve for x
    x = 387,299,263.58/28,712.49
  6. Step 6: Final answer
    x = 13,488.88

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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.