Home / 28,712.69-43,068.65-9,992.37

Finding the Fourth Proportional to 28,712.69, 43,068.65 and 9,992.37

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Solution

The fourth proportional to 28,712.69, 43,068.65 and 9,992.37 is: 14,988.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,712.69 : 43,068.65 = 9,992.37 : x
  2. Step 2: Convert to fraction form
    28,712.69/43,068.65 = 9,992.37/x
  3. Step 3: Cross multiply
    28,712.69x = 43,068.65 × 9,992.37
  4. Step 4: Simplify right side
    28,712.69x = 430,357,836.24
  5. Step 5: Solve for x
    x = 430,357,836.24/28,712.69
  6. Step 6: Final answer
    x = 14,988.42

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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.